Actually if your parting out cars properly you should make several thousand above your costs and cover your costs with the scrap metal, cats and wheels/tires. I am averaging 30 hours for complete teardowns right now. Just got another blazer torn down, sold the body w/title for $300, the wheels and tires for $400 and the front clip for $500 tranny for $300 rear axle $250 front axle $150, havent put the the rest of the parts on ebay yet as im still running the shop tearing down several more cars.