I added a .040" radiator cap (didn't want support material under it or I would have added it to the 3D), .0125" grab irons and start crank. BTW the piece hanging off the back wall is a bending jig for all those grab irons.
Did 2 simple brass tube headlights and an exhaust stack. In the real photo it looks like the exhaust is towards the rear, but this is my model
Also put in a simple wall to divide the motorman from the passengers.
I ordered another revised model, if that one turns out OK I might paint this one up and sell on ebay. It is one of a kind RARE after all.
After that I will offer them for sale on Shapeways.