That is the way I was leaning, I also thought I would paint it with a good Marine Paint, or perhaps a 2 part Epoxy, I think sealing the bottom edge (ground Contact) is most important. I did get the dig spec today Just one sheet with 12X24, 16X24, 16X32, 20X40, and 16X48, also was advised that all liners are available with the walk ledge. Thanks for your help, I'll post Pics when finished.