KNOWN ISSUES
~ You should know that during the making of this mod, a gratuitous amount of ♥♥♥♥ has been consumed (no, I really mean it); if there is anything off, you'll know which Daedric Prince to blame.
~ I very strongly do not recommend harvesting the plants on the streets. Even though it is not visibly marked in the game for ownership, the inhabitants will take offense, and the Nord guards, who care so little about the life of their fellow citizens, will suddenly seem very sensitive about the plants they raise in front of their homes. It is all quite strange, but the Gray Quarter is indeed a strange place, playing by its own rules.
~ If you wish to remove one of the Scathecraw buckets, you can try but you will find they are nailed onto the surface below them and cannot be moved.
~ In the Cornerclub's food storage room, the pile of Ash Hopper Legs sometimes decide to hop out of their proper place and I have given up to try to keep order among them.
~ If you walk the rooftops, know that you tread on grounds that were originally not intended to walk on. Some odd behaviours like standing "above" ground floating, or clipping into it are bound to happen, but so far I had no experience of followers getting stuck or any other issue that was not purely cosmetic. Odd clippings are especially due in the rooftops of the central area; to be on the safe side, your followers even in spite of having seen some ♥♥♥♥ will find it way too risky and dangerous to follow you there. Because you are the Dragonborn and you have no fear of dead wood, you are welcome to explore it however; your ankles might sink into the pile of planks, but they will not crack under your feet (I've tested). Quite a few small surprises were left there to discover as well.
~ There is one more minor issue relating to the central rooftops; some of the items are placed there are not visible from all angles, and you might see their shadows at first before the actual items would come to your sight. I think this has something to do with the odd meshes on the rooftop and therefore is out of my power to fix. Krosis.

COMPATIBILITY
This mod requires Dragonborn and is likely to crash your game instantly if you don't have it, or you accidentally left it out of your load order.
If you have such a mod as for example Open Cities, the city streets will be unchanged. You can still enjoy the rest of the functionality of the mod; the interiors and shops will work as normal.

SIMILAR AND RECOMMENDED MODS
This mod might not work for everybody, or could clash with other mods you use for voodoo reasons; if you know of any mods you can recommend besides or instead of this mod, please let me know and I will link it here.
Morrowind Imports - from the practical point of view, pretty much the same mod in my understanding but focuses less on the Dunmeri swag (might be useful if the gazillion decorations make your computer slow) If anyone can confirm whether Morrowind Imports is compatible with this mod, I would be grateful.
Fine Goods From Morrowind - Just in case somebody has missed.
Realistic Lighting - If you want your Gray Quarter to look the exact same way as seen in my screenshots, this is a little graphic addition that I use. Mind you that it makes interiors quite dark. Torches/Staff of Magelight/Candlelight spell will finally have a good use in dungeon-delving, if you decide to use this mod.
If you wish to make your Gray Quarter and all around Skyrim a bit more populated and lively, I could recommend such mods as Inconsequential NPCS [www.nexusmods.com] or Randomly-Generated Generic Townsfolk [www.nexusmods.com]- these are the two I use at the moment and I can comfirm to be compatible.
SkyRadio - In case you would like this song to play in Sadri's Used Wares, or want to party to this song in the Cornerclub. Slip into your Temple Priest Robes/Padded Fur-trimmed Cloak, put the Dwemer boombox on your shoulder and let the Gray Quarter hear who's got this ♥♥♥♥♥ locked down. More suggestions for songs are VERY welcome.
Dawn of Windhelm[www.nexusmods.com] and Nernies Thief Pack[www.nexusmods.com] are two very warmly recommended mods. The first adds three merchants on the streets, a shrine, and some decoration on its own; the latter adds a bookstore, a gem shop and even a player home in the Quarter. Warning: this version of the mod is NOT fully compatible with either of them. I have uploaded a compatible version[www.nexusmods.com] to the Nexus.
Faction: Pit Fighters - adds a whole faction to the game in a fully voice-acted, brilliant and quite large mod. Soap not included.
Ashlander Amulets brings back a piece of Morrowind in a slightly different way: three of the beautiful artifacts return with a little story/treasure hunting game fabricated around them.
These latter two mods seem to be fully compatible, as far as I could judge; but I haven't yet looked very thoroughly - if anybody can confirm this for certain, I'll be grateful.
MarurabaATX suggested a player home mod that seems to be compatible and from the screenshots, it looks lovely.

THANKS TO
https://steamhost.cn/steamcommunity_com/profiles/76561198052279427 for helping me with an issue with the navmesh that made half my hair fall out; if it weren't for him, I would now be completely bald. Also for testing and making a few very useful suggestions.

MMOxReview for making a very aesthetic review of this mod in his series! Thank you for the honour! Also thanks to Arzen Blood-Storm for drawing my attention to this!

FAQ
~ Can you make a version that does not require Dragonborn?
Unfortunately this is not possible. The game files work in a way that 99% of the required files are packed into Dragonborn.bsa.
~ Why do you use such terrible slurs as snowback? Are you racist?
I'm a snowback myself. It's reappropriation. Ironic use.
~ I like the drawings, where do they come from?
I made them myself. If you are interested, visit my profile where you can find two links if you want to see more.

CHANGES
Will be documented here. I am planning to make a Stalhrimless version of this mod just like I did with Fine Goods from Morrowind, but for that you will have to wait until I unwrap my presents and eat my Salmon Steak with Baked Potatoes. (I swear to you guys, that is legit our Christmas dinner.)

- Jan 20th, 2014 - This update should change nothing other than making the file more reliable and less likely to conflict with other mods. Think of it as a thorough sweeping of the streets without touching any furniture or objects. In the next update I have scheduled a small player home. Stay tuned.

SUGGESTIONS
Are welcome. Let me know in the comments!