A 4' x 6' or 5' x 5'?????
Great advice on "taping" the size/location of the layout on the floor. A lot of questions will be answered with a few hours taping.
I just pulled out about 20 older Kato SP's that I've had stored. SD40/45's and Dash 9's. Most need a service, with a few still NOS and the lube is a dry blob. That's old with no run time.
My plan is to weather the "aged" small logo SP's that had hadn't seen a paint shop or wash rack in years, along with fresher SP Speed Lettering.
Something really cool about a lashup of SP's.