Fascinating. When I get home(since I am at work) I will post this thread's link in the other forum just to show the person that thought correctly about the Mikado conversion to a Hudson.
Rather amazing, I really didn't think it would be possible to do so. Sort of wonder how they did it, put a whole new chassis underneath, do some modifications to the boiler, rework the valves, etc., etc. Be interesting to see.
I managed to actually see the special PBS ran on Sierra #3 a few years ago, and that really had me hooked, suppose watching something on converting one engine to another would be much the same.