I have an Az '97 90 that spent the last year here in NC- and zero rust. The truck has 150k +/-, but just installed a brand new 4.6, 60k tranny service, new bushings, brakes- pads and rotors, all new cooling lines-including oil and tranny- etc. Interior isn't too bad, one small tear on drivers seat. Paint on bonnet is bad faded- Az sun- and could use a fresh coat all around, but all orig at present.
Also have one coming from Tx that was Az until the last year or so- again no rust, '94 w/ 120k, 60k on top end, tons of suspension and axle upgrades, including Safari Gard rear susp.- planning to return to stock. Not here yet, but possibly late this week or next.
PM if interested, not planning to list for sale til spring.