dumb ? im just wanting to no

[c10custum]

i found an 82 shevy shortbed no rust... power everything, air, heat, cowl hood some aftermarket rims slick truck many options, not the original engine my freind i went to school with owned it he blew the original being stupid put in a race car engine then sold it but now its got a differnt engine cause the guy that bout it put it in his malibu but its a solid truck theres many of them floating around here... i was wondering how rare an 82 is cause if looked on here a while and didnt find much, and what u guys think one is worth ? thanks