The 1875 Baldwins… 2-4-0, 4-4-0, 2-6-0, 4-6-0, 2-8-0. Maybe even an 1880 4-8-0.
A Spectrum or Proto 2000 camelback in HO.
Some of the Harriman Standard engines. Don’t care what configuration just some of them.
A Milwaukee K1 2-6-2
A Great Northern Y1
A EF1 Box cab with the parts necessary to either run them alone or as combo units
A GE 40 ton steeple cab. Be nice if this one was in Spectrum
A Soo Line 2-8-0, 2-8-2, 2-6-0