Hi, I found my dad's old ho set from about the 60's and i'm trying to get the two engines back to working order. the one i need help with is the one that has 'wabash 452' on the side. it's motor is burned out and i want to try to find a replacement that is as close to the orriginal as possible. Its wheels run from rubberbands on a drive train. a picture of the shell is on the attachment. any help would be greatly appreciated.