So I am considering getting an Atari 4" trackball because I love their huge size (that's what she said). Problem is I have a 3/4" wood control panel and I am trying to keep everything flush mounted. In this case I would not mind some bolt heads showing.

I was thinking of removing the plexiglass and metal top, drilling the circular hole for the ball, and routing the wood to 1/8" thick for the trackball base. Then I could either drive bolts through the top or put something underneath it to hold it up.
I am worried that the 1/8" wood would be too thin to support someone smashing on the trackball. Therefore, bolting from the top will not be a viable option.
I think the best solution is to create something to hold it from underneath. It would secure the trackball against the control panel and in place. This would allow for a completely flush mount as well. See the following crapagram:

Red: Tranckball
Blue: Harness/support
Black: Control Panel
Grey: Bolts that holds harness/support to control panel
What do you guys think?
Edit:The wood is 3/4" Birch "Plywood Hardwood" and I do NOT have any plexiglass overlay.