I say do it yourself. Your basic hand tools will do just fine. The only thing you have to make sure of is that your new clutch will come with an alignment tool. This keeps the clutch centered while assembly. Here is what a brief list of things that have to be done. (I may forget something)
1. Disconnect your battery
2. Remove your starter.
3. Put jack under tranny and remove crossmember
4. Disconnect your front and rear driveshaft from your transfer case.
5. Remove shifter
6. Remove transfercase
7. Disconnect any linkage attached to your bell housing.
8. Remove your transmission. (you might get away with just pushing it back).
9. Remove clutch and throwout bearing
10. Have flywheel resurfaced
Remember to keep all your bolts labled where they came from. It will make it easier and faster when putting it back together. As far as which clutch to get, if you run alot of mud and water, I suggest you get a 3 finger clutch (has less of a chance to get packed and jammed. But for just all around wheeling, your stock replacement will be fine. As far as your clutch linkage is concerned, I don't know if you have a mechanical or hydrolic. If hydrolic, I would replace the line. If it is mechanical, I would replace the whole assembly. You can check out Hagars 4WD
for your clutch needs. He even has a breakdown of your clutch linkage at the bottom of the page