I haven't run any HO trains in 30 years, after going to O-scale. This weekend I pulled out one of my old HO engines. I have no idea who the manufacturer or what the original engine was, but I know I converted it into a 4-6-0 using a brass frame a machinist friend of mine made for me using a drawing I provided him.
Never ran great, I'm guessing due to the open frame motor.
What I want to do is convert it to Battery-Powered, Remote-Controlled, using either a Deltang Rx65b or a BlueRail receiver. I've already wired a Deltang receiver and a 9.6v battery to it and know it'll work but I'd like to replace the motor with a new can motor. Also need to use a smaller battery, the 9.6v is way too big in size. Might need to use a smaller battery and a step-up voltage regulator.
What do you folks suggest for a motor and battery?
Here's a photo of the open-frame motor mounted in place:
What dimensions do I need to look at in order to get a motor that'll fit and work?
If I can get a motor then I'll start making improvements on the engine itself.