You could also go to the local bearing place and get bearing#6206 and #6306 (as I recall, don't have a book in front of me
) I do find it easier to press the bearings into the case halves, then carefully press the crank into the halves, with Yamabond aplied before final mating. Years ago when we did alot of G1 rebuilds, we had a "special tool" that we could do all of this in a vise, no press needed.