Ok I've pushed some fixes in hopes of...fixing...things. I've reduced the upgrade modules to vanilla stats, the refinery has twice the upgrade slots so it's still better over all. I've tried to fix the airtightness issues of the assembler, refinery and cargo container. I've also fixed the collision issues with the scaffoldings. I've done this the lazy way by removing the build states for now until I feel like making actual build models. This means the block will look fully built when you place them but they will only have 1 steel plate.

-Changed upgrade modules to be less overpowered-down to vanilla stats
-Updated 3-way cross pipe to take skins
-Updated collision model for Wood Scaffolding Stairs