Easiest method IMHO is:
Gasket laid out flat on the sun for a while to get it to relax.
Pull tank.
Big zip ties to hold harness up out of the way.
Remove all the bracketry in the way.
Pull coils.
Loosen all bolts (don't forget the oddball 1 at rear of engine)
Tap rubber mallet gently until it loosens a bit.
Remove cover, slide out exhaust side of bike, can be a bit finicky.
Stuff rag on inside of half round cut out areas.
Scrape off old rtv with plastic blade and prep surface of head.
Test fit gasket to head to ensure it's relaxed enough to not kink when installed.
Lift cut outs and apply RTV sparingly.
Reassemble in reverse.
I use 3/8 wratchet + long Allen drivers + swivel attachment for most of the bolts and a short driver on a 1/4 wratchet for the #3 cylinder one on the exhaust side, access it tight for that one. Torque wrench can be tough to fit on the #3 bold