Hmmm okay I have done this several times and worked great every time AND held up for years.
For a wood deck fiberglass coat it AND put clean large grain sand final coat so you dont slip
You can get 5 gallons of fiberglass resin for $150. Any cracks or holes in the floor use bondo for $20 a gallon.
You can add as thinner into the resin so the first coat "soaks" into the wood deck. Then apply more coats to make it tougher.
Go to a junk yard or a company that coats liners in truck beds and buy the plastic truck liners for about $20 each. Cut them up and use them for tracks so the carbides don't eat the deck. You can even cut a lip to help the sled turn out of a V-nose trailer. Then cut sections from the tailgate liner and mount on the deck parallel to the track lugs between the "bedliner" tracks and the E-track so the sled has grip.
To tie the sled down bolt E-track to the deck.
E-track is rated to hold 46,000 psi but each clamp is 2000 to 6500 lbs depending on the type of clamp tie down release. To ghet this kind od holding strength grade 8 bolt it to the frame or weld it. This is the same fasteners used inside cargo containers. About $3 a foot but each foot has multiple ports to connect clamps.
Carpet don't work in the South West cause it gets above freezing most of the time and you drive up to the snow ... 7000 feet. The ice / snow melts then freezes to the carpet ! So when you try to pull it up the carpet comes with the ice!
And yep we do this on outdoor decks in the mountains cause the temps there range from 120F in the summer to -20F in the winter ! Or rich guys buy cedar ... and then replace it after a "bad" winter. Ya there is the "new" plastic decks but htey leak and the plastic is screwed into something ... wood!