I sold an '85 and an '87 this year. Both were in good running, driving, reliable condition with no mechanical issues. Both single cabs, V6's, 4x4, 5 speed manuals. I had a ton of receipts included with them. The '85 was pretty solid, no major rust except for the driver's side floor pan that I completely replaced. The '87 had a ton of rust holes in the fenders, doors and box but really none in the cab itself. New windshields, tires, brakes, clutches, tune-up parts, etc on both. I think I took a small loss on both but needed them out of the driveway when I bought other projects... I got $3500 out of the '85 and $3200 on the '87. They both sold within a week and I had a ton of buyers lined up.
If the body is in good shape and the interior is pretty nice (looks like it checks both of those boxes) then that will help you a lot. I would NOT discount the price at all because it's 2wd or a 4 cylinder... that might be just what someone wants. Things that will hurt the sale value are major leaks, anything that prevents it from being a reliable driver, major repairs needed, worn out tires, obviously janky wiring, etc... all that stuff will determine whether you get low offers in the hundreds of dollars or people lined up willing to drop a few thousand.
Just my experience. The better you can make it, the more your value will go up... I sold a 94 Mazda B4000 4x4 a few years ago and only got like $1100 for it because it would grind going into 2nd gear. I had that stupid truck for months - it was pretty nice other than that one problem but nobody wanted to deal with it.