Good luck Larry.
Looking forward to following your build.
I am currently working on a portable Railway. Built on 30” Threaded Pipe Legs with leveling feet. A simple oval with Gauge 1 and Super O track. 8 feet of straight track on each side.
I have all the materials. Waiting for a friend to cut out the plywood road bed on his Bandsaw.
Nothing fancy. My entire small backyard is a pool. So, the only place to set it up is on the pool deck.