Cats..are...the...devil.
Anyway, a couple of things to make this easier as you proceed:
O As mentioned, ensure 100% of electrics are disconnected prior to even undoing the motor mount bolts.
O Swing arm does indeed have to come out.
O Take pictures as you go for reference later.
O Manual says you need a number of fasteners replaced, check my thread in Rocket Performance for a list.
O Get some good circplip/snap ring pliers, it’ll make the transmission part easier.
O Now is a good time to upgrade some items like starter motor, add new ground strap, etc.
O The flywheel Remove goes like this: screw in special tool till it stops by hand...hit with big hammer, blew my mind the process was so crude.
O Don't skimp on the assembly lube, gasket material for joining cases etc, just not a good spot to cut corners.
O Don’t touch the tensioner, or anything on the engine side except clutch removal. That can all stay in place.