Your mod has inspired some new ideas about a mod I was considering. I wanted to mount a fuel cell above the passenger seat and was trying to figure out how to build something to hold it in place. If I chop off the back of my seat it looks like I can secure the cell much lower and the mount will be much simpler. The cost of the custom mount I was thinking of and a spare seat for when I don't use the fuel cell is probably a wash so I won't worry about chopping the back off my current seat.
Thanks for posting the pictures.
"Veni, Vidi, Velcro"-- I came, I saw, I stuck around.