Thanks for the suggestion, and thanks to Mike for shipping them out so fast!

These look like they'll work great - only one question... the one side of the battery tray seems to take body clips to hold it down, but I don't understand why the otherside is different. It seems to want screws to hold it down, but I don't understand how the battery would be easy to take out if you have screws holding one side down.

I wonder if just wrapping thin wire through those holes would work... what are you guys doing?