You can have as many parts of the bike powder coated as you like, battery box and stands, footpegs etc, the powdercoat finish is far more resilient than paint so it is ideal for such parts (remember to ask for gloss finish) just make sure you get a quote up front, black is the only colour that will look ok on your frame, you can remove the data plate before sending the frame in, carefully remove the rivet heads with a small drill (very slow speed if you use an electric drill) then gently tap the rivets through with a centre punch, don't bother preparing the frame yourself just get it sand blasted, sand blasting and powder coating together cost me £200.