Need some paint help asap

I friend of mine is painting my car in two weeks. He told me what I needed to buy like paint, clear coat, etc. When he was rattling these things I wasnt paying to much attention and now I am in a jam. He is out of the country for the next 2 weeks and the day after he returns my car is getting painted. I told him I would have the stuff ready. My question is what all do I need and how much of it? I am going w/ house of kolor paint so how many quarts do I need. It is a full color change, but I just need enough to do the outside b/c I am getting the jams done w/ black that he already has. If someone could help me out I would really appreciate it. I really need to know specif stuff since I need to order it this week.
thanks
brad

i would say just go to a paint shop and ask em, they probly would know more than most the people here
get multiple opinions though