where can i buy paint for my car for about 400 bucks?

Any local NAPA store, depending on the color.

go here

Trinity 1945 - Automotive Paint, Auto Paint, Car Paint Suppliers

Alsa Corp | The world's most unique paints and finishes

Anybody know how that paint actually is?

i have personaly used it and it is amazing and im planning on getting the mirrachrome and some outhers from alsa to use for my camaro restoration this winter..beleive i know its hard to believe they can achieve what they say but its true,its amazing