Either way, unless you really good at masking, you're going to have to brush something...either the superstructure in gray or the decks in tan.
Tamiya Spray paints are very nice, just be sure to warm the can first...I typically fill a pitcher with hot tap water (do not boil, microwave or heat with a blow torch, flame thrower, candle) and let the can sit in it for awhile, adding more hot water to the pitcher every few minutes to keep the temp up. Once the can is warm, there's more pressure in the can, and it atomizes better.
If you mask, you need low-tack masking tape...I generally use the 3M blue stuff. Be sure you allow your first sprayed color to dry and cure before you start masking, otherwise, you pull the paint up with the tape.
I also use Glad Press-N-Seal, it's an adhesive backed plastic wrap. I've never had problems with it, but some folks have complained its left residue on their models.
Jeff