A KCS A-B in one of there early fright paint schemes
there is a one on display in Decatur, AR in this paint scheme. More info Here
...in a early passenger paint scheme
a alternative B-unit, this would be used in A-B-A lash up
last but not least, a Great Northern "big sky blue" A-B set
I used Benn Coifman's "cheese wedge" nose, & all units have a slightly modified version of Chris van Lottum's prime mover in 'em. Also, some parts were copied from Swoofy's F units
These were built using mostly available parts in the LDD brick pallet, with the exception of the tracks, front magnet, & some o' th' roof details.
BBB wheels would be used for th' fans if these were to be built for real.