There are several items that you can find in the vaults that you cant craft in this mod like the recreational items. It makes me wonder why those are not included in the mod? If possible why not adjust the research tree so there is a prerequisite for research you need that unlocks the walls and doors. After that you can research the other techs with one of those being the furniture items and restored versions of the decor items like the barrels and containers which could actually be used for storage.