Just ordered a Braille B3121 billet mount in black from B&B Classics Inc. Picture of this jewel from their website below. (They are a site sponsor with banner to left.)
Billy at B&B Classics Inc. was great to work with and it was nice to speak to someone with several years of real experience using the Braille B3121.
This should make tucking the battery in the stock location a little easier and look great as well. I will run the parts over to Tim at GAP when they arrive.