Valve Covers

[Rosco]

I'm getting my car worked on, (new clutch assembly, hd clutch fork, billet clutch cable, new flywheel) and One of the things that's being done is getting my rear main seal replaced. They also found out that my Valve Covers are leaking some oil. Gosh, I shouldn't known that before when i noticed some oil on the side of the block. Dumb me. Anyways, they want $250 to change the gaskets, so I figured i'm going to do it myself. For you guys that have done this before, is it really that hard to remove a valve cover and replace the gaskets? I just want to get some kinda idea of how long it might take for me to do. Oh yeah, kinda going along the same line, if I have those off anyways, I'm gonna take a look at my stock rockers, and possibly put some new ones in. Is that really difficult other then finding out how tight to bolt them?