Yes....it can be done. Get a kit of your choice and mount it. The easiest is the 'under dash' models, fits neatly to the metal dash with brackets......the cooling coil and all your air controls are in this little unit. Then all you gotta do is run your lines, hook up your condensor, compressor and mount it and your dryer. Yes....you can 'piggyback' off your alt. pulley....its got enough to deal with without having a air compressor along for the ride.
You want the compressor running off the motor......theres plenty of room under thepass. side alt. and all you gota do is fish around for a pulley if the kit doesn't have one.
The kits run about $800-$1000 range.....but how important is your health and coolness to you? Also those that want to get cheaper......you can get all the underhood stuff yourself and mount it.....the civy trucks had all this stuff and you can get it all thru LMC.......just make sure you get it all hooked up and airtight.....but leave the compressor belt off. Now.....you can get the underdash unit for about 200-300, mount it and wire her up. Then , when all is said and done.....take her to a air place, have them suck down a vaccuum and fill her up and check her out.
At least doing it this way.....you don't have to pull all the dash loose and out and have to break everything down and ruin the look of the tactical Vehicle............Remember, these things have all the mounting holes for the big huge honkin assed cover that houses the big oversized ineffecient cooling coils and blower motor on the pass. side of the firewall....where all your important main battery lines run. I much prefer the underdash units....they're higher quality, are better designed, more compact.....and more effecient. If you ever got to work on them, just unplug 4 wires that tap into your 12 v. junction block and disconnect 2 hoses and yank her out....you can work on it up on your work bench instead of standing on your head in a pretzel position. All the parts are readily avial and you don't have to cut up your truck.............