OK, the board is 1" x 3/8", the battery is 3/4" x 5/16" x 1/8", speaker is 1/2" dia 3/16" in the center. they can be purchased from dealextreme.com its a BT-300 and sells for 6.80$ U.S. I was looking at the pics on page two of this post. that is where I thought I saw the hinges. We can go with your method, that's fine.
I had just started my first day at ITT Tech. Can't wait to get in the lab. Have been stocking on PC bord making suppies, And building a new developing tank for them.
Hope this info helps out.