Not sure how to break this to ya, but your S-10 ain't gonna pull much of a 5th wheel. 
That's pretty much made the decision why NOT to buy a camper. My Ranger, though two wheel drive and more tow capacity than a 4WD, is pretty limited on what you can haul. Even with the proper hitch configuration, most of the pop ups were too heavy.
Load them with gear and luggage, food, water, et al.....WAY too heavy.....and leaving the wife and dog at home wasn't an option....very petite wife and a very small dog...
