@Michael McKelvey wrote: "The difficulty is that the engine has to still face the rear and it is hard to pull the jack sideways. Maybe I will try rotating the engine on the jack."
If your motorcycle jack is like mine, it has swivel casters on the front and straight-ahead casters on the rear. I wonder (without going out in the heat to check it out) how hard it would be to get another pair of swivel casters for the rear? (Amazon might be a good source, or maybe even Home Depot/Lowes).
Then, it would not only be (theoretically) easier to position the engine when going in or out, but you could simply push the jack and engine sideways and out through the wheel well opening (although the spring plate is still in the way, but to the rear of the brake is open.) You could also rotate jack and engine (once you removed the quick-attach handle) if needed for better clearance.
You would have to match the wheel size and drop of the front pair and having the rears lock might be a good thing, too, although the current rears on mine do not lock and it's been fine to work with. 100# capacity each should be plenty.