I read the ad about your truck, and i have one i sold off. It was a 1983GMC Sierra 4x4 350 show truck. I sold it for $5,000. Seems high but i put around $8,000 in it (new engine, system, driveshaft, ect...) including the purchase cost. I hated to see it go, but you have to bite the bullet and realize your never going to get what you put into your vehicle. If i were you, i would consider lowering your selling price. Just a helpful suggestion.
Guess i should be changing my avatar..