If you're selling to a salvage yard, they'll pay scrap metal prices. No two ways about it. They have to sit on it, selling bits and bobs off it, until the yard space is worth more than the metal price of the day. If you were to think about scrapping out a truck in our RV park, we'd have cross words. Sell it as a project, you'll likely do slightly better than the salvage yard price, but you'll have more work, too.