Well, I'd probably use Red-Kote (which is now actually blue) because of the extended dry time with Por-15. I was interested because the new Moby looked a little rusty inside, and I figured "what the hell - something else to experience on a moped". This evening I cut my third drive chain to length, and I've gotten very good at that process. Given the amount of posts on here about rusty tanks I thought it would be a handy skill to have - another piece of the puzzle.
(I'm one of those older assholes with a job that lets me buy moped parts and stuff without a real second thought - thinking it's cheap compared to what I have to spend on cars. For example - I'm shelling out about $350 a month in car insurance on 3 cars - that's the problem when you have four kids on the policies - two of whom are 17.)