Buy a used roll-off truck, a couple of radio ads (for your professional business offering great cash prices on junk cars), Business cards, nice logo'd polo, a sawzaw, and some gas money. Use all available free advertising, and save at least $1000 for cars. shop around for best prices in your area at local scrapyards for your scrap cars. Cut off the converters and sell them on eBay. Expand after you save up enough money.