good hedder paint

I'm considering buying a used set of hedman hedders from a friend of mine, i know for a fact these hedders have not been ran very long and he only wants 100 bucks for them. My only concern is painting them, the bottoms of course are a littly dirty and i am wondering what the best hedder paint would be to use on them. Any suggestions? i want them black but i want a good hi temp paint that wont peel off or bubble. Also how should i go about painting them? obviously i will sand hem down and then do i primer them? or just spray straight black paint on them after sanding? Any suggestions are apriciated