Small layout concept - help please

[Brakie]

5' X 15" is ......limited?......just a bit?
If I had to work with that, I think I would go for 1 ( spread out ) industry, or maybe two small industries, and move rolling to and from the location by car float ( some, of the "couple of feet for staging/fiddle yard", could then be added to "industrial usage").
Just a thought.

I have worked with 12" x 5 footers its not that hard if you remember to think small like a Shay,Climax,0-6-0Ts,boxcabs,44 tonners,70 tonner and 40' cars.