Mount size is the big difference why Not all parts are interchangeable. Most parts for to do the conversion are on the picture.
Missing is the brakeflag, what at the moment i do not have.
Cylinder/piston, ignition coil, flywheel, carburettor, airfilter, muffler, gastank, can be of an 562.
Do make the conversion u need to change the crankcase, oilpump, -gear, oilplate, clutchdrum, clutchcover and brakeflag.