Hammered paint isn't available in high temp....the high temp paint you want Slow is Rustoleum high temp silver. In my opinion...it looks the best...it's kind of a flat light gray paint. Some of the high temp silvers get sort of a gloss to them and they aren't as fuel resistant as the Rustoleum. Shake them up well and often... Just my opinion.
True high temp paints aren't available in rattle can except in a very few colors, and they are all flat paint. Automotive stores may have some header paint that will come in other colors. There are others available, but they get stupidly expensive and are more of like an industrial coating IE for disk brakes etc....
For built in ovens on older Coleman stoves, the engine block enamels are available and they have a decent gloss to them. They are only good to 500F though. I did up an oven with it...you gotta run it through a couple of heat cool cycles to make it a "bakable" oven though. Early on, they are smokers!
Dragonfire....make sure you really pad your lantern fonts. I use foam rubber and a strip of the shelf liner to grip the base of it. Don't crank the vise down too tight as it will distort the font. Make sure you keep the bail out of the way...don't ask me how I learned that one...Doug
That's just all my opinions though....