Re: How many cans?
Keeping with the recycled theme of my build, I ended up just stealing a couple of cans of leftover paint from my dad's garage. Can and a half of silver paint. I had another can and a half of yellow just in case, I still may spray it with some yellow to really give it the ghetto look. But the a can and a half covered every thing, not super thick but looks good enough for me.
I also tried one of those Gator Striping Wheels from Lowes to remove the paint. It worked awesome, made a quick job of cleaning off the metal, but it won't make it through two jobs, rough edges tear it up pretty kick.