Need Help, 71 cheyenne 1 owner 30600 miles

[DADS71]

Just stopped by to look at cheyenne 1/2 ton long bed 1 owner has protecto plate says he has build sheet and possibly can dig up original purchase check. Bed is in excellent shape inside and bottom is dent free tailgate molding woodgrain tape missing, body very straight, paint is okra and white needs paint job very thin this looks to be original paint has working A/C converted to 134a auto transmission , white bench seat and door panels the beading on drivers side of seat is missing about 6", carpet not bad for original windshield small rock chip, 350 motor power steering but not power brakes this truck is 100% original down to wheel covers. crawled under no rust on original rockers cab corners cab braces this is unheard of here in southern indiana with the salt on winter roads. truck owner swore it has 30600 original miles, moldings need replaced upper and lower but no dents in vehicle to speak of I have no pics but from my description what do you guess it is worth?