Joe,
the track count exceeds what you have in inventory. In SCARM, select Tools on the Menu Bar, then Parts List. I would use 40" in O to equal 2- 20" of SS or 12 total.
That's the concept. Is there a reason that you do not want the corners against both walls?
The table got a little wide between corners. My initial thought was a loop of the FasTrack outside and a loop of the Super Snap inside.
here's my take on it. I would get an O31 RH switch and make two reverse loops with a single track between them to open up space for buildings and such.
I would like you to build a circle of FasTrack and circle of SS inside to confirm that there is sufficient clearance. The software shows yes, but it may not fit. Overhang on the inside could be an issue also, even if it physically fits. Train/cars colliding.
Played with the 3D for some eye candy. In the track count a 20" cut Gargraves equals a 20"SS and a cut LIonel to 4.5" equals an SS.
