Nope, a local shop is doing the interior vinyl panels for us, at the same time they added the high top for us.
For the floor, no plywood. We don't want to drill in the floor.
Our intent was to install a product called VanTred - it was supposed to be a cushioned, contoured "rug", with a rubber topper for the flat flooring on top. The one we ordered via Amazon was THIN, with no contour.
My husband called VanTred this week, and they have no explanation as to why we ended up with this mat. They confirm that the cushion was supposed to exist, and it was supposed to be contoured. Since our order was via an Amazon vendor, all we can figure is that the vendor shipped us a "non VanTred item" in a "VanTred" box.
So he re-ordered one from them directly. It should be here (I hope!) by Friday.
Sandi