In reply to both of your posts, I would take the head to a reputable automotive machine shop and have the work done by a pro. The expense is more than worth the end result. You will get back a part that has been throughly cleaned and reconditioned, and, if it needed valve train work, unless you had the correct tooling, best left to the pro anyway.
2000 Dodge Grand Caravan SE
No matter what you fix, there will always be something else to fix..
"Warranty" is just another way of postponing the inevitable.