All depends. I have heard of some shops asking for the person having the work done to bring things preped, and ready for coating, asking $300 for a single color. The shop I work for we do all the sandblasting, tape work, plugging, and what not in house. We get about $200-300(size of frame) for a single color(I.E. black, blue red, green... ) For two stage colors(trans, chrome clear, candy colors) those are around $350-450(size of frame)
My 1998 frame is a two stage Vein blue (for sale)