This is a decent write up although it is for a tj - only minor differences which are evident when you do it.
You should be able to find someone to do it for less than $300 labor. If you have done some of your own mods, then you can probably do it yourself if you have a 1/2" torque wrench and a set of punches (in addition to a common set of wrenches). I had to loosen a couple of main caps when I did mine in order to get the upper seal out.
Further, I took the time to check the wear on a couple of main and rod caps to see how the bearings were doing as well as checked the piston skirts, etc. One other thing I did while I was under there was replace the oil pump. I figured since I was there and the engine had 101K miles on it . . .
Doing it yourself lets you see how well your engine is doing (what crap is on the bottom of the pan, bearings, etc).
ETA: When you get it all slapped together, run your engine or go around the block and it will help your new pan gasket get a seal (heats everything up).