I haven't tried this yet, but I think it would work. What you would need: 1. basic portable tool set, craftsman has nice sets ~$200 2. some free time 3. cheap u-pick auto parts yard(s) 4. internet capable cell phone How it works. 1. go to the u-pick yard and size up what potential high $ parts are avail. example: you find a wrecked 2002 F-650 truck and see that most of the engine is still there. 2. use your phone to check ebay prices, and find the alternators are $899 new, so used price is around $450. 3. buy the alternator for $50 4. list it on ebay for $450 BIN 5. $400 profit for 1hrs work A nice enhancement would be to inventory several good yards, then spend a couple hours researching before you go pull parts.