Mark
that is a rare Tomha cab car. You got a good find there. The Milwaukee Road took a basic Fairmont and built the cab kits for them. we have a MT-19 Thoma at our RR. even rarer. The Beauty of the car is your out of the weather. The engine is a Onan CCKB. 18 HP. more like 30 MPG on the rails. I think your car weighs about 1800 lbs with the cab on it. Or it will when you add all the stuff on it.
Sheet metal looks real nice. That saves a ton of work.
This is my main car I use on big trips. MT-14 Cab car. It was a chicken coup when I got mine.
You may want to contact me off line. I can get you pointed in all directions for the parts. Any reason your rebuilding the engine or Tranny? There very durable. A buddy of mine does the transmission rebuilds, he has all of the parts and procedures.
Goggle "Fredericksburg shops", Dean will have all the little stuff you will need. I typically get the new wheels for the Narcoa membership. He has the trailers and car Turntables to spin the car.
It's a great hobby, a way to see America's back yard.
Jamie