We should add that Joe is very good at what he does. I have a converted Lionel here that he just finished, and it looks and runs like a dream. It is only powered on one truck - you want to avoid converting one-truck Diesels. But Joe will tell you that.
The real deal is that Joe is good enough and fast enough that he can do this stuff for about half what I would charge. I still have one set of Williams T1 drivers in 2-rail, and nobody can afford them. We did about 20 of them for Vince Waterman.