Go to a REAL parts or paint store and you will find pro products. At the paint store I use they have Meguires in small bottles or in gallons. They have the color sanding paper I mentioned, foam pads, everything you need. This is a very small paint store, go where the pro shops in town by their materials and you will find this stuff.
AZ may have it, I don't know because I don't shop for stuff like that there.