Let's see, $10-$20 per model kit, then I usually use my paint from previous cars, so say about $10-$15 in paint, then for other supplies such as sandpaper, markers and putty etc., I'd say about $10 there going toward a total for about $30-$50 USD. I guess it depends on how much extra supplies I got lying around my house. Like sandpaper, u don't use the whole sheet on one car!