Thanks! I had some time over the weekend to lay out a "yard" with Moonman's flipped interpretation of the layout. Side note: SCARM is awesome.
The left side will be my Experimental Pennsylvania Railroad yard with an S1 #6100 and an S2 #6200 parked at the bottom off of the wye switch and various freight and passenger cars in the yard up top.
The right side will be my Operational Union Pacific Steam Fleet. I'd like to have three of Union Pacific's currently (or soon to be) running steam locomotives parked on the little three-pronged yard at the bottom right: FEF-3 #844, Challenger #3985 and Big Boy #4014. The yard at right top will store their collection of cars.
I'd like to have a big passenger station in the empty triangle area up top and maybe build a couple engine houses to go over the locomotive parking lots.
Thinking about it now, though, maybe I should mirror it. UP in the "west" and PRR in the "east"... It seems these layouts are never finalized.
Looking at it today with the exported bitmap overlaid on my CAD software it appears I can extend the four main straights a bit past the switches that lead to the crossing. That will allow for a little bit more room to extend the rolling stock yards a bit and some more clearance for the back walls of the engine houses. I'll be rushing home after work to add a little length. The plan is for 8'x20'. I feel obligated to use up that whole twenty feet!
Of course, it's all a bit of a pipe dream for now considering the thousands of dollars worth of locomotives I want, not to mention all the switches and rolling stock. It will likely be years in the making. But, I figure there is no deadline and it never hurts to plan ahead!