The process you'll want to follow is roughly:
Wipe down with meths/ prepaint
Zinsser 123+ primer
2 coats acrylic undercoat, sanding between coats
2 coats acrylic gloss sanding between coats (johnnos aqua with a little floetrol, or Sikkens)
Apply with a mohair roller and lay off with a quality synthetic brush (wooster silvertip is good for acrylics).
As has been said, wet and dry will be the only way to get a really high end finish, but this will get you somewhere in the ballpark.