Concours, OEM and Fire suppression Options

[1970 Neun vierzehn]

Not wanting to drill through my OEM carpeting on my '70, OR drill into bulkheads or floorpans, I'm wondering how and/or where to mount a HALON fire extinguisher in the 914. My last effort was fastening the F/E bracket to a small wooden base that was cut to fit transversely across the passenger side area, immediately in front of the seat. The problem with that was leg/foot encroachment when carrying a passenger, and in v. hard braking or cornering, the "snug, wedged-in fit" between the trans tunnel and door sill wasn't tight enough to always hold the F/E in place. After too many times rolling forward under hard braking, I knew a more permanent solution needed to be found. I've considered mounting the F/E under the dash panel, but the thought of drilling 4 or 6 holes there is not appealing. Has anyone found an effective way of fixing a fire extinguisher in the passenger area w/o ruining originality? BTW, placing it behind the drivers seat doesn't hold it securely enough either.