I sprayed my exhaust heat shield with the 2000 degree hi temp matte black rattle can. I tried the 500 degree first, but the color was too far off. The 2000 degree one was watch closer, still not exact so it's a bit of a two tone vibe, but I'd rather keep the factory paint on the outer shield for durability. The two tone look bothered be as I bolted it on that day, but I haven't given it a thought since the colors are plenty close to look great. All I did was a very light sand, clean, then 4-5 very light coats with about 30-60 minutes between them. I'm no expert, but I find that the easiest way to botch a spray paint job is definitely by going too heavy. As long as I can resist and keep the coats light it usually comes out great.
Great looking bike! The silver parts that haunt me the most still are the handlebar clamps and the fork stanchions. The clamps you can probably just spray, but the stanchions... boy would black stanchions look good on these bikes.