I'm 99% certain we're not talking about a head gasket. That's $20 for a pair from autozone.
depends also on how much damage you did is it only the gasket or the head is also crack also on the shop you go to not all the shops are the same a dealer will want a gold mine
COMPLETELY depends on the vehicle. If it's a 4 cylinder, it won't break you. If it's a V6, it would depend on if it's FWD. If it it FWD, and the firewall side of the engine, it will be expensive.
All depends on how accessible, how easy it will be to get the head off.
