Looks like a nice plan Tim, only the small tables are 24×48 so that’s going to constrain the track a little bit more than is shown in your drawing. One other thing is I don’t know if we have enough track, even between the two of us. I contacted a guy on Bricklink that is willing to sell me 72 lengths of straight track for $300, but I don’t have the money at the moment (Christmas coming and all).
BlueBrick does not have 24×48 tables in its parts library so I “blacked out” (with black baseplates) the extra space and adjusted the draft layout. This layout would require 178 pieces of 9-v straight track. I just counted and I have 113 pieces of straight track. We would need 65 more pieces of straight track to complete both circuits as I have drafted them.
Matt, I added the mountain module to the layout using tan baseplates.