How hard is it to change a crank case gasket on a 2001 arctic cat 500?

I believe it is similar to my suzuki 500 the two side cover gaskets (clutch/magneto) are easy for someone who has experience, the crank case gasket at the center of the engine is very hard.

The engine would have to be taken out and almost completely dissembled to get to the center crank case gasket, at this point it may be easier to get a used engine, or if your going to keep it for a while you can rebuild the engine you have.

If your engine is leaking a little bit of oil, you can try some epoxy, clean the area with some sand paper and solvents to remove all oil/grease