I put down several layers of high heat paint, then the decal, then 2-3 coats of high heat clear coat. After 10+ years my calipers still look pretty good, minus some expected wear. If you cannot find the decals online, I'm sure most local vinyl printers could make them for you. Standard length is 3" some people like to use 3.5" or a mix of the two between the front and rear calipers.
