As Norton stated, the AC Commander and RS installed in the tender is a very good and simple way to proceed. I acquired a very nice, detailed K Line Hudson, 5344, and installed ERR AC Commander/RS. The purchase of the Hudson and ERR products was very reasonable, the resulting TMCC/RS engine an excellent addition to any roster and well within budget. Future enhancements will be easy to perform when needed, on a very well detailed and scale sized Hudson. As for the MTH PS1 scale Hudson, I formerly owned one, and it is a nice detailed Hudson. I have converted several PS1 engines to TMCC/RS with ERR products, steam and diesel. It is not difficult and having more of my roster with Command Control is what I prefer, do not use the MTH control system, keeping all under one control method outside of conventional.
Jesse TCA