Got some fresh hose today, I found that if it don't have an R9 rating, it should not be used in our fuel systems. Speaking of fuel, photo one is how I guess I need to mount the aux tank, I had set it up as in photo three, but that puts the filler on the down hill side, photo one allows a better fit, and easier to fill inside as well. I cannot see the fuel gauge from the pilot seat, but would probably not use that anyhow.