Chris--

I mounted a 1.3 lb. H3R FIRE EXTINGUISHER MODEL A344T fire extinguisher on the cockpit floor just in front of the main spar on the passenger side. It's easily reachable from the pilot seat.

For my cockpit interior, I used about a quart of Zolatone "Apollo Gray". It's very durable, but I don't believe it comes in spray cans. The Zolatone paint sorta' has chunks in it, which splatter on the surface. You'll have to fiddle with your spray gun to get it to spray correctly with the "chunky" paint. You can see the "Apollo Gray" color in this photo where I was bonding my transponder antenna on the right side of the baggage bulkhead. (I'll let you know how it works after my first flight in a few weeks). I would have placed the antenna where you did but my VOR antenna is on the ceiling of the baggage area and I didn't want them to interfere.