If you have time and some tools, it is not a tough job to do yourself. You would need to remove the belly skid, rear driveshaft, then the transfer case and transmission. The top two bolts of the transmission to engine are a bit tough, but with patience, can be reached.
If you have a shop do the work, I would estimate 4-5 hours of labor plus parts. When I changed my clutch, throughout bearing and pressure plate it came as a kit and ran about $130. Good luck and welcome to the forum.