Ok so I've been contemplating just painted my OEM kit myself rather than having a bodyshop do it. Now if I got my paint from http://www.paintscratch.com/ should I also buy their primer and clearcoat, or would I be fine going to a crafts store or something and buying some duplicolor cans or something?

How much paint would I need? It's for the front lip, side skirts and rear valances. Is paintscratch's 12.5oz can enough or should I get a 2nd?

Any help and advice on painting this stuff would be greatly appreciated.