Re: Larson 310 Cabrio - New carpeting in cabin?
Actually I think any of the laminates for this project would be WAAAYYYY too much work but that is just me
The floor that is left when you pull up the carpet is not going to be laminate ready. Chances are there will be some cracking in places on the subfloor too. You will need to sand down the residual carpet bond (cement) or put something over it as a new subfloor. You will also find that the subfloor is not as "flat and level" as you think for a laminate type floor application even after sanding. I personally would not use the planked floating floors you have linked (like the kinds sold at sams and home depot for the home do-it-yourselfer regardless if it is waterproof) based on what I saw, at least not without putting a new sub floor on it.
Maybe something like that strip product that nuteak has would be easier in strips and you can heat them to bend around the curved edges like by the beds and closet (assume your layout is similar to mine). Then you also have to deal with making it look like it was intended to be around the sewer tank access under the floor (right in front of the sink area) and the hinged access panel to that sump by the base of the steps. You dont want to seal that sewer tank closed without future access considerations as that is when it will develop problems

At least it would if I did it...
Not trying to talk you out of it. Just pointing out some of the things I saw when replacing the carpet in mine. And, the carpet makes it quieter in the cabin. I think my whole carpet (big remnant of a high quality pc) was done, all-in, for about $600 installed (includes the beers for the helpers).
By the way - have you considered the issues associated with a floating floor when you take it out on the open water and go bouncing down the waves?