Replacing the clutch itself is the easiest part. The hardest is getting access to it.
Recommend a transmission jack - it has adjusters that will allow you to precisely tilt, pitch, and roll that bitch back where it belongs haha. Might even be able to remove/install the transmission and transfer case without separating them (separating would be a real pain in the ass). Also recommend doing the job on a smooth concrete surface - that'll make it easier to roll the jack around as you're getting it back together.
As for replacement parts, I'd recommend replacing as much as you can afford while you're in there. Obviously clutch, but also throwout bearing and the pilot bearing in the crankshaft (they're maybe $40?). Harbor Freight sells a set of blind hole bearing pullers that will help with the pilot.
Good luck, and post up some pictures of the job. I'll bet most folks here will see something you did better than them in their youth haha.