CM - I recently went through doing another NMF on a build here... I tried two different mthods to compare the results. On top: Krylon gloss black spray paint. On the bottom of the fuselage: MM Gloss black enamel with future on top.
Hands down winner was the futured MM gloss black. Coverage was very fast, just 2 coats with a few swipes each versus 3 plus coats to get even coverage on the top. On top I eneded up with a bit of a textured finish in afew areas, on bottom it was smoother than a baby's behind... I suggest you try both methods too as different people like different things. But once you find it, it goes on SO nice!!! (try it on some spare sprue or a junk model first)
And you don't need the primer for the enamel gloss primers... although Alclad's site lists Tamiya grey primer or auto primer as suitable under their aluminum coats (all but the extremely shiny ones like polished aluminum) they just recommend you smooth it out with 2000 grit sandpaper first. (available at the auto stores)
Good luck!!!