PVC is a good idea for the Rear Main Seal. I like them flush or a hair under. Watch the inner lip on the crank as you seat it. For removal, a seal puller or a small flat blade driven into the side of the seal works well also. I use oil not grease to reseat.
Use a piece of wood on the bottom of the oil pump to control the pitch of the motor.
The clutch slave is easier to take off AFTER you pull the starter out. Remember that order when you reassemble, or do the starter twice (like I do).
Instead of a putty knife, I use a painters tool. It's a little thicker and has a tapered end.
Matco sells a drift pin punch that makes life easy: http://www.matcotools.com/catalog/pr...-REMOVAL-TOOL/