What kind of bikes can you swap a minarelli (chinese clone)

[kosmos]

motor on to?  old zumas?   which years?  is it hard to swap the motors?  the bike I got this motor off of had 12 inch wheels, with front calipers.

I have a minarelli scooter, but its in rough shape.  Its a united motors xpeed dont know the year.  headlight is in rought shape and would need to be replaced but its kind of rare to find one and they are not cheap. 

I have an eton bike with most of the plastics, but it had 10 inch wheels. Should be easier to find the few plastics I need for it.  Would it be difficult to swap this motor on to? and since the rear is made for 12 inch wheels,. Could you take a yamaha type bike, and swap the forks over so I could swap on and use the 12 inch front and rear wheels on to a 10 inch wheel yamaha bike?

Mainly, what kind of bikes can I swap this onto?  And is it easy to swap the front forks for the front 12 inch wheel if I need to to run the 2 12 inch wheels if its not a 12 inch wheel bike?  Any of the 4 stroke newer zumas able to swap the 2-stroke minarelli onto?