Coxy, Painting your candy will not keep it from giving you cavities. Painting your tank with candy might prove to be cost prohibitive for you, especially if you are not already equipped to do so. If you don't care about the cost, I like SATA spray equipment. High quality, one of the best. Nason Select (Dupont) clear is a real nice product. Its reasonable cost wise, water white and 2 coat application. I don't know what the smallest amount packaged is or your availability. Candy can be difficult to spray too. You apply it in thin, even coats and build it to your liking. It pays to do spray outs or test panels to know how many coats gives you the look you want. It will be be fun to learn and only practice and error does that. Hvlp spray systems operate at approx. 43psi at the guns regulator, gives about 10psi at the cap. Air pressure and atomization affect the color, pearl, or in this case candy effects. Also the clears distinctness of image and film build. to really do it right, it gets involved if not complicated. Are you droppin the stuff off at the paint shop yet? Have fun. Mark.