The motor mount will fit. For the centre shaft you can use the works 92 (3mm pitch belt) and the newer YZ10 shaft. You can also use most of the YR4 series centre shafts but not all.
These will fit
http://www.end-of-line-rc.com/cars/o...or-yr4m2j.html
http://www.end-of-line-rc.com/cars/o...ar-adapto.html
Your best bet is to join RC10 talk, they have an excellent vintage yokomo section and when you have reached a certain amount posts you will be able to join the trading section.