Guys, I appreciate the flow of ideas.
Jetrock, very true regarding the straight & curved sections. I could go all-out with some huge curves, then I’d nearly have a circle, but with all the sidings, etc. along the walls.
My big flaw with that is that I want a passenger station. I know, it’s a tiny layout for a passenger station, but I just want one where I can stop a train in front of it, etc. That particular scene might have viewblocks to prevent it from being seen from other viewpoints. And the passenger station needs a fair length of track - say, 4ft so I could have one engine and 3 passenger cars sitting in front of it. 4ft +22" radius x 2 + 2inches clearance at the wall = 8ft. So to have 4ft of straight track, I have to have 22" curves, which aren’t compatible with the long cars.
Or, I could have the passenger station on one of the “siding” sort of tracks, but make it look like a mainline - which will be ok for photographs, etc.
As mentioned, yes, I’m trying to think out-of-the-box here. Thinking about possibly having 3 or 4 linked-dioramas, rather than one “layout” in the standard sense. Like maybe the passenger area, a switching area, and a “just scenery” area, divided with 3 view blocks.
Stay tuned guys, I’m going to figure this out!
I’m pretty sure HO is where my heart is. I know it’s really an N-scale space I’m dealing with, but I want HO, and since it’s a hobby purely done for “I-wanna” reasons, then darnit, I’m going to have HO in my small space.