Fire Extinguisher Mounts: Looking for Advice

[Need_for_speed]

I'm gradually prepping my 2000 base for some DE days and will need to mount a fire bottle to meet my PCA requirements. Pelican has several different mounts available -- Brey Krause, Rennline, Rennline e-z adjust, etc. I did a forum search and didn't turn up much, so interested to know what you folks are using. I'm looking to mount the bottle under the front of the passenger seat, unless anyone has a better idea.

These things aren't cheap, so I'd like to hear some feedback before I burn some of my allowance money. Thanks in advance.