I just want to re-iterate what 42etus wrote about reusing gaskets. I tried reusing the gasket under the valve cover and engine didn't run right due to small leak that was difficult to see. Since these engines are supercharged, any air leak is detrimental to the performance of the engine.

Good news is that you can get gasket material from the auto parts store and make some of the simpler ones, like the one under the valve cover. Very effective and easy to do.