How bad do you want it and how much money do you want to sink into it after initial purchase?
FWIW, I just gave $1500 for a 90 1 ton dually 5 speed 2wd body great shape no bed, ReCon or reman motor, unknown miles.
Either way be ready to sink a bunch of money on it for getting things back to snub. IE, springs, alignment, front end parts, possible rear end rebuilt, transmission definate rebuild, VE possible rebuild, turbo maybe, other associated parts, lift pump, intercooler... etc. . then again maybe won't need to put any of the above back on it. .