My idea is that each component should be its own piece, sold in a set priced like the regular LLOMS. The buildings could be on a slightly-larger-than-LLOM scale. Then, they fit in with the tower height of a regular HL more or less. (They ARE small towers!). You may then arrange as you wish-either smushed together in your curio, or spread out across the house at a life-scale distance. Up to you.

Another idea is to have the set include both the individual pieces and a same-scale base for them, sold either with the set or seperately. This base could have indentations for each building.

Just some ideas...