I do agree with the comment said above about 40's and 50's passenger diesels. Perhaps the Denver Zephyr/Nebraska Zephyr units, B&O EA/EB, ATSF E1A/E1B, Rock Island TA, the E3, E4, E5, E6, (All pretty much the same thing) E7, E8/E9 could be run through the drawing board. Also perhaps some passenger equipment? The original Rockets, the Capitol Limited/Royal Blue, the 1937 Super chief, the Denver Zephyr, the Green Diamond, the Nebraska Zephyr, the Abraham Lincoln/Ann Rutlege, the 1937 El Capitan, the Lark.... *stuffs gimmie pig back into the closet* *voices in the background* GET BACK IN THERE NOW! Ok i'm back, and the gimmie pig is gone! I am good with whatever you guys make, as long as it is US based. D what you want and maybe you will get to those in time. Man, that gimme pig goes wild doesn't he? *grabs baseball bat and "hides" it behind back* "Come're piggy piggy!"