eurospek- Good macro pic!
No matter what, you'll see the repair, so I'd resign myself to that.
I'd use either a rust converter or a primer on the bare metal, then apply the touchup paint with a small (probably about a sixe 0, or "oh" ) artist's brush, first the basecoat and then the clear (more of the latter than the former).
Besides your dealer, you can google up "Paintscratch dot com" and/or "automotive touchup dot com". I've used both and sometimes they match, sometimes they don't. There's also DrColorchip (a single-paint/no clear system) but I've never tried their stuff.
That'll leave you with a "blob" of paint on the repair. If you choose to level it to make it less obvious, you can do it chemically with Langka or mechanically with sandpaper. But if you do the latter you'll have to compound/polish out the sanding scratches, which is often easier said than done.