Well, I can think of some 1.4 items that would certainly enhance the look and give it that advantage.
EDIT Please read lol:
I've just thought of a complication. A lot of the items I want to make use of are novelty items/decorations sold by the Party Girl, as well as enemy drops and found items. Wouldn't it be a bit suboptimal to have NPC sold items in a natural-gen structure? I want to place all sorts of furniture throughout and a lot of that is going to be decorations from various points in progression, but while most are non-functional, I still worry it might be strange.
EDIT 2 Sorry I just keep thinking of things:
With all the furniture and decor I want to put, this is becoming less and less a realistic concept and more and more a build, given that this will be very complex for something generated and full of things that are simply fun creative ideas I thought of. It's going to turn out larger than I think optimal for the mod structure, so please do omit anything you deem unnecessary. Anyway, it's only brainstorming so this isn't going to be in any way final.