In all of his videos on Youtube, there is a link down below in his video description of all the mods he uses. Follow the link and add the mods. In fact in his YAML playlist series in the first or second video he gives a total tutorial of how to do it.

If you're having trouble finding some items, I recommend the Mech Delivery Mod.

Thanks for your answers, I found what I wanted now ^^

Should update that collection on workshop so every netizen he sends this way doesn't build from it then come asking all confused.