So I was searching for leather hides.... and The leather hide store had some on sale. So I ordered 2 hides in Khaki
They showed up while we were cruising Alaska
So the easiest panel to take out is the one under the rear seat. With a left over roll of aluminum sheeting. Looks like siding from something.
And a couple hours later
As far as fire resistance, Pretty sure it will burn way less than the cardboard panel tha