intake gasket is 4.2 hrs with AC interference
head gasket is 9.9 hrs with AC and CC interference.

intake set is about 75 bucks, due to the design of the gasket. you will also need valve cover gaskets (have to pull one VC to get the intake out) figure about an hour additional and 20 more dollars to replace that goddamn quick connect that always breaks in the intake too.

a head gasket set is 145 bucks.

first thing: check your oil. if it is foamy and white, it is a safe bet that you will need an engine. you can fix the coolant leak, but it WILL start knocking very soon.