If the bore of the MC is in good condition, then a rebuild is easily done at home. Any of the usual suspects should have a "rebuild" kit for under $20. The kit should come with instructions, but it's a fairly simple operation (and of course you can ask here if you get stumped).
If the bore is damaged (pitted or gouged), then a new MC is probably the best route. Looks like TRF has them on sale for $75.
Either way, you'll need to remove the old MC from the car. It's probably best to have a "flare nut wrench" to remove the pipe fitting from the MC, which should be readily available at Sears or your local tool store.
Then after reinstalling the new/rebuilt MC, you'll need to bleed the system. I find that I can usually get my clutch to "self-bleed", by pumping it up, holding for a few seconds, and then releasing the pedal. Repeat 3-4 times or until you don't need to pump to get a good pedal.
Be careful with the brake fluid; it will damage any paint that it touches. It also has a nasty habit of getting inside joints and promoting invisible rust. Personally, I'm a big fan of DOT 5; but not everyone likes it (including the manufacturers of replacement brake components).
PS, while I agree entirely with Andy, I doubt that the leaking MC is the cause of the sticky clutch.