Stop in for a cup of coffee

Hey George,
You probably do the most painting on the coffee crew.... How much paint will I need for the Duster? How many coats is normal for either SS or BC? Outside only, canopy vinyl top. Any areas that have been worked on are Rustoleum 'rusty metal' red spray primer. I will be going over most of those with their 'almost black' primer cause I found out on the engine bay it covers better than the red which is nearly the same as the finish color for some reason. It all went on pretty nice, so was not planning to prime/seal the whole thing. Not sure if I will just do SS like I did for bay and jambs, or BC. Does base cover better than SS? I am happy with the way the SS looks. I keep seeing people saying go BC for metallic. Just not sure that I can spray good enough to get it right with SS, and I know the BC would give me the chance to fix any oops after its done. My original plan was to shoot it in my driveway, but I realize even a little breeze could be disaster. So, not sure where it will get done or who will be pulling the trigger.
It depends, cheaper paint you usually need more of it and tinted sealer really helps. SS metallics can be tricky because you're trying to get the gloss and metallic pattern correct in the same coat. Also, ss metallics don't buff well, a little wet sanding and you're down into the metallic.