If you've never painted with flakes before, you're in for a big surprise. With flakes, you don't just mix them in the paint. It's a long drawn out process with a lot of steps. Do a search into the process before you decide that this is what you want to do. I've been custom painting car and trucks for 30 years, and I hate tackling a metal flake paint job. It's a lot of work, a LOT of work and very little room for mistakes.
Frank