Looks like it has been a while since I added anything to this thread so here is a new project.
We have a long barren section along the back fence where there is no points of interest except the main line. It needed something and we had several farm buildings left from the old railroad so an executive decision was made.
A farm/ranch layout was developed and the basics are now in place. Unfortunately due to space and layout constraints none of the existing buildings are going to be reusable. This means 9 new structures have to be built 
A couple of pictures of what is done so far.
The open area with the new “table” in place
A close up of the new area with the track and structure bases in place.
A view from the other end. The main line is going up on a 2% grade and the table area is level. I used carved foam to make the block wall separation.
The first structure, a windmill and tank is already underway.