My current layout is only 3' x 8'. I've found I only want to run locos that have cruise control in them. I can run them nice and slow so the layout appears bigger.
Today I shot a short video of my three cruise equipped locos running together. These are:
MTH RK Commodore Vanderbilt Hudson 4-8-4 with TAS Engineer On Board and their Puff N Chuff board. I have a Railsounds 5 sound board in it.
Behind the CV is a MTH RK 0-8-0 Switcher with ERR Cruise, Railsounds (medium steam) and GRJ's Super-Chuffer w/ Chuff-Generator.
Third is a Lionel Mikado Jr 2-8-2 with Railsounds 5 and ERR Cruise Commander M board installed. This loco has a piston puffer for smoke so the smoke is a bit anemic.
The initial crew talk heard in the video is the ERR Railsounds board. Nearer the end of the video you can hear the cab # specific Railsounds 5 crew talk.
Ward H