i got my caliper paint at autozone... it came in a kit by duplicolor with caliper cleaner, the paint, and a brush... you have to buy the clear separately, but i just got the high temp clear by duplicolor.... i painted mine with the calipers still on the car... and what i did was covered the rotors with newspaper and taped it on and taped the other parts you don't want to paint...
everything i've read said use 91 octane... however an interesting fact i found out from a sewell employee is that they fill the cars up with 87 octane at the dealership.... kinda makes you wonder eh?....
and no sorry no bbq for this kid.... i used the day for recoop from the night of trash can punch that preceded it.... apparently i had a very good time!!! lol
anyways good luck with the project!!! and remember if i can do it, you can do it!!