its best to turn the engine to top dead center.
ok

now use some twist ties and tie the chan to the gear and remove it..
ok
then comes the worst part and that is the plastic timing chain guide on the right.... if you figure it out then let me know..

you mean the passenger side? I think I'm supposed to retract it with the allen key on the passenger side also. right?

the top snaps off and the stud is suppose to be pulled out with a puller...

the top of what snaps off? and should I only buy the head gasket from the dealer?

if you break it its only 10 bucks... good luck..