Mollydog - Did you ever find the Hill Valley Courthouse you were looking for?
I completed it in HO scale several months ago but have not made it available for sale as of yet. If you are still interested let me know and I will provide photos and purchasing info.
I have decided I will only sell the printed parts not the STL files. It was too much work to make it available for someone to capitalize on.
I'm currently working on the rest of the buildings and eventually will have the entire block available, plus a few outlaying items ie: Peabody farm, the drive-in theater, etc.
Have a Great day