I priced sea dek, they said it would be $2-3K. Came back with a quote for $7K and I told them thanks but no thanks.
Then I found some other stuff and installed it myself:
https://marineflooring.net/gallery/#bwg3/253
It's little curls of some sort of plastic fiber, makes for a nice cushion under your feet. The underside is some sort of non slip material that works really well.
It's not a glue down which means I take it out after every trip to clean it. I made a raised platform out of 2x4 and fencing, I put it right side up and do one pass, flip and do another pass.
It works great for me, I'm very happy with it. Might not be the right answer in a slipped Marlin.