i was on my way to a camping trip and i was on the freeway and all of a sudden my car dies on me. i pull it over on the freeway, and steam pours out of the engine, i add oil and some water, but it still runs bad, so i get it towed home, and we begin to diagnose it and turns out a plug poped out while on the free way and it dumped all my radiator water on the freeway. so now we got a new plug and added water to the radiator but now it bubbles out the radiator so my best guess is a bhg. so im asking if there are any good threads on how to change the head gasket or guides, or a good idea how much this is gonna cost me to have a shop do it. im not mechanicaly comfortable with taking half my engine apart to change it myself. so any help would be appreciated.