I hear you on the deals to be had, even the new trucks are getting priced real low. I wouldn't lose sleep over the potential problem you might have, Paul. You got a hella deal, most thing I have heard of problems with the 7.3 is the crank sensor going out, its under a hundred bones and is easy to replace.
Now if I can unload a nice big chip truck on someone, I can get me 4x4.