I would think long and hard before just jumping in. I speak to people on an almost daily basis that think what we do is easy money and easy work "You pay £1000 for the car, wash it and sell it for £2k, easy £1k profit!" they say. As we all know this couldn't be further from the truth. If you're going to seriously look at doing this you need to work out all of your business overheads, £5k working capital is basically nothing really. Remember your outgoings are more than just the cars you want to buy i.e Mechanical repairs, bodywork (inc. smart & dentman), work phone (DON'T use your own phone!), website, business cards, advertising, insurances, unit rental, trade plates, tyres, MOT, servicing, warranties I would look at the others advice on here and start part time, you can quite easily work it around another income to begin with until your pot is big enough to swallow up the cost of the lemons you WILL buy and the quiet times when the phone doesn't ring but the mortgage is still due!