Head recon/replacement

Wondering how much it might cost me to have the head checked/skimmed if needed or just replaced. Got a problem which I'm hoping is just head gasket related but keep being told by everyone to sort the head. I'm tempted to just go all trial and error on it and rebuild the head and engine bit by bit if I have to lol. At least it'll buy me more time. All but skint most of the time and got major issues atm which I have a feeling I don't have the money to do a proper fix job on :(