Thanks Denny and all of the other comments or suggestions as to what to do here.
A few years ago working in the LTL trucking industry we did haul around some cardboard/foam board for a concrete company I think it was used for insulation under a building pad, just wonder if they might have something that will work for this application.
I don't know the exact mileage on my 50 but the more I uncover and restore it I think it really has to be very low mileage for something like this to survive.
