I just rebuilt my engine this spring...
I didn't need to support it from above... we just....
1. support the bike with the front/rear stands.
1.1 Remove Chain
1.5 Remove tank, air box, side fairings, front fairing, exhaust, exhaust headers...
1.6 Remove battery.
1.7 Disconnect all wires, spark plugs wires, throttle stuff, etc... from engine...
1.8 Disconnect all hoses... clutch hose, etc....
1.9 Remove radiator / oil cooler
2. Use a floor jack to support the bike when you remove the engine bolts...
3. IT TOOK 3 GUYS TO GET THE ENGINE OUT FROM UNDERNEATH THE BIKE WITHOUT DROPPING IT. I don't see anyway you are going to lift that engine yourself and guide it out... 4 guys would be better...
I am sure I missed some stuff, but this will give you an idea what is involved... We had the engine completely out in 2-3 hours tops...
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