is my spur in the right position for a RCM motor mount?

[Topspeedtimmy]

A much more simple and cheap option would be to go with a bigger pinion AND spur. Use a 62t or 68t spur. I was able to fit a 68t 32p spur on my nitro revo conversion using the same chassis and transmission with only about 1-2 mm of aluminum taken out of the chassis. A 62t might barely rub the chassis.Then, get a pinion reach the desired gearing. For the MMM possibly 24 or 25 tooth pinion with the 62t spur.