Before the failure, I was contemplating fitting radio control to this model, but I think that would be a waste of resources.
Rather than replace the motor, I will remove the burnt out one and, in due course I will build a self propelled goods van to power the freewheeling unit. I will fit the van with radio control and a diesel sound unit. The drive will probably come from a Playmobil chassis that I have in stock, that should give up to 20 years running, the one fitted in Loco number 2 has!