The proper tools make it easy - the problem is they are a bit too expensive to buy when doing just one engine......and they are very heavy and somewhat costly to ship (unfortunately they don't fit in a small flat rate box. In addition to the puller for the rotor - you also need a deep socket for the flywheel nut....and a holder for the flywheel.
It sounds like you may have to remove the rotor from both engines....so you will need to do it twice.
Here is a link to the light flywheel/tool rental thread. If you don't want a lightened flywheel - then just look at the tool rental portion. The cost of renting the tools is just $20 and shipping is another $20 - but I require a $100 deposit. You will send me $120 and I will ship the tools to you, then when you return them I will refund you $80 (The $40 deduction is $20 for the rental - $20 for the cost of shipping them to you). The sad thing about all this is that it will end up costing you $60 - USPS makes $40 on this deal and I get $20 to cover the rental no the tools.
http://suzukisavage.com/cgi-bin/YaBB.pl?num=1504271719/0#0When separating the crank halves the left crank bearing is a snug fit on the crank......and it helps to use an assist - I have a flat plate that pushes on the crank and I can include that with the tool rental.
When you are doing this work - get the proper Suzukibond to use when assembling the crank halves and cylinder head cap. It works far better than any store bought RTV. The Suzukibond is black, if you have silver cases and want a grey colored sealer - get Hondabond or ThreeBond.
Where are you located....sure would be handy if you were local and didn't need to ship this stuff. It sounds like you have a big project ahead of you......making a good engine out of two damaged ones can be a big project.
If it is within your budget - this is the perfect time to upgrade the piston to a Wiseco, install one of Lancer's nitrided cam chains, and perhaps install a performance cam.....and do a bit of head work to clean up the ports!