Yes, that is what I mean about price range.  The add/pics make sound like it could be a possible candidate, I would take a look at it if I was in the market and in the area.  I would think it would be sold at around $23-2500, depending on what the rest of the interior looks like.  If everything is complete and it runs good, even at $2800 it might be a good deal. 

A DIY rebuild isn't all that difficult with the 22r engine, like everything else with these era trucks Toyota followed the KISS program, that is what has made them so durable.  However given your newness to Toyota trucks, and the need to have a reliable DD, I would also have a dealer mech or shop that repairs Toyotas regularly take a look at it.   

A new A/C comp would be a couple of hundred plus service to the system and refil with R12.  Given the price of R12 and having to buy a new comp, it could be worth the extra costs of converting the system to R134.  You could do the DIY 134 conversion yourself but the one I did never cooled very well.  I ended up swapping out the refrigerant for a product called Maxi-fridge, which is a propane based refrigerant.  It cools just about 90% as well as the R12 did, and about 100% better than running the R134 through the R12 equipment.  A lot of people on line seem to be hesitant of it due to it being propane based, but it has been about 8-9yrs now and I haven't had any issues with leaks.