You may be looking for a new command system eventually, but I have to say MTH makes a sharp looking product and a retrofit need wouldn't scare me one bit. Im always watching for a good deal on one to convert to conventional for myself too. Mechanical parts? Same as a hunt for post war items; no biggie if you're patient.
I just witnessed far too many of my brothers early dcs stuff die to want to pay for the features I don't want anyhow .(a few grand worth. basically all of it)
I've got my fingers crossed for you folks though 🤞