Okay.. Ill jump in here...
Not going to lecture on hitting bearings with hammers etc...
first.. I normaly like to install the bearings into the cases FIRST... as it makes the process a bit easyer
But since you are the other way around... here is how I would go about it..
Find yourself some scrap steel, old sockets, etc that are big enough to fit around where the bearings go in the cases (But not touch the crank seals)..
Put them in the oven at 500Deg F..
put your crank and bearings in the freezer for ATLEAST 4 hours...
put the heated sockets on the cases.. wait about 4min.. (now is a good time to put on your Yamabond).. go get another... put on the case.... go get your crank..
Crank should DROP IN the clutch side case... But since your working the other way around... BE PREPARED for it not to... 60% chance it wont.. (Did I mention you should have already applied your Yamabond??)
WORK FAST..
get the ignition side case, and drop it on... it should go on fairly easy... torque all case bolts to 1/2 spec... then to 3/4 spec... then to 100% spec...
You can also do this by putting both cases in the oven set at 180D F... NOTE NITRILE TEMP RATING IS 250d f SO......
This doesnt work as good, as it wont get the cases as hot as the socket way of going.. but if you dont have sockets big enough, etc... it is the way to go