There are a number of different choices in regards to gaskets. Felpro has a basic engine gasket kit with std 8554PT head gaskets (anyone need some of the 8554's? I'll sell'em cheap) std cork pan gaskets, etc. that is relatively inexpensive at about $58/kit. Felpro also has a performance line of gaskets that we use on most all of our builds: the 1020 head gasket, the black intake,
oil pan, t-cover, etc, gaskets. These are much tougher gaskets and highly recommended when using aluminum intakes or heads. NOTE: if using the exhaust crossover in the heads, one must use the metal jacketed intake gaskets, not the black fiber ones.
For our performance builds, we use a special gasket kit that includes all of the high performance gaskets: head, intake, two
oil pan (for the windage tray), etc. I don't remember the cost off hand, but it is significantly higher than the std gaskets.
You can always buy the gaskets individually and mix-and-match what you need. Just depends on what you want.