Once the paint was dry (cured for a week) I plugged the floorboard holes with fresh rubber. There were a lot of holes . . .

Next I cut 1" strips of the Eastwood Xmat to fill the beads in the floor. Where there is likely to be heavy traffic - I put two strips to raise the valley of the bead to almost level:


I also used the X-mat to insulate the floor hatches.:


Work continued into the back seat and into trunk. There were at least 30 rubber plugs:


The result is a completely insulated floor with a foil vapor barrier:


I think the floors should be good for the next 60 years . . .
regards,
stock49