I can't believe it took me 6 days to get pictures... But anyways, they are here.
I finished the battery box, which is a sort of hybrid style. The front velcro strap (industrial strength, of course) keeps the battery from going forward. I put that strap there because the front plastic piece that was originally there (part of the battery box) broke when I crashed into a bush at ~20mph. This strap is flexible, yet will not come undone (I strength tested it). Also, the strap will allow for packs of different lengths :). Then there's the velcro over the top of the battery, which also should not come undone.
Now for pics:
BP-Revo, if you read this, you are welcome to see it in person today (it's coming to Hobby People with me, and I'm there all day).