I decided to use all four aluminum floor covering examples received here:
1) aluminum sheeting over DOW foam between ribs, and decks,
2) hydroturf,
3) gray tiles,
4) and Sears Best Step
I liked all the methods and recommendations here and the combination will be unique to say the least. Using hydro turf for major horizontal and vertical surface. Using gray tiles for seating areas along the rod closet and under gunwales. Using Sears Best Step for bow and stern traction when I bunny hop from the slick Missouri river banks.
Finished converting the existing decks, middle floor, hatches for livewells/storage from plywood to aluminum sheets with piano hinges instead regular hinges.
I'll keep posting pics as I near completion. Basically, I am converting a Bass boat to more of a river boat to deal with sand and mud. I also loved trashing the old plywood and making my boat about 100 pounds lighter. Although I kept the boat covered the best I could in the winter time, the old plywood was starting to retain water and make my boat heavier. By the way, the old foam under the plywood was deteriorating badly too. It must have been the liquid type from the 1984 Monarch manufacturer. If I squeezed hard enough between thumb a forefinger it would disintegrate and drop to the ground in a powder substance.
Thanks for checking out/commenting on pics. I hope some newbie like me comes along and can use these ideas too.