Offshoreonly.com - 28 Pantera Flooring

1996 Pantera 28.
Ok so I want to take up the old yellowed coin floor and install a new floor. What are the best options? I was thinking:

option 1, install new coin floor
Option 2, install woven vinyl flooring
option 3, if possible and depending on what is under the coin floor, refinish in gel coat and install marine deck foam.
Option 4, leave it alone and just replace the carpet that’s just layed in with a snap down.

Does anyone have any first hand knowledge of what’s under the coin floor? Plywood? Fiberglass? Appreciate any insight I can get. Bonus points for someone who has already done this. Thanks.