heres some pics of mine, i made the speedo mount out of a peice of aluminum, the battery tray came from new era, i just drilled then tapped the holes in the chassis with 2 screws to hold it down, same for the strap, the tray is like 15 bucks shipped, i thought it was a good deal

http://www.rc-monster.com/forum/showthread.php?t=21136