Thanks for the comments guys. The situation really got my heart racing.
Here is a couple pics of my extinguisher mount. The guys at West Bend Dyno in West Bend, Wisconsin put the piece together for us.
The base mounted to the floor on the tunnel:
Don't mind the towel. I did not want to get the interior dirty with dust.
Not the best quality pic but you can see up close how the extinguisher mount works.