2 pieces for sale.
Summer 2016 I replaced all the deck/flooring in a 2000 North River that I restored. Finding proper vinyl took a lot of research. There is a lot of home patio vinyl available, and some "cheap" stuff from Cabella's and Bass Pro. I finally found the tough quality, anti-skid material that is used by the boat manufacturers. I found it at Rex Pegg Fabrics in Washington. They call it Capri and this is the Silver-Grey that North River and others use as original equipment.
http://rexpeggfabrics.com/index.php?prodID=609&cat=Carpet-Vinyl+Flooring%7C103the pieces I have left are approximately: 58-1/2" x 100"+ (99-1/2" on one side and 129" on the other)
other piece is 10" x 129". this can be seam-melted on to the big piece of used for seats, gunnels, or whatever
Here's a sketch of the piece sizes
http://www.mortgagementor.com/downloads/Boat%20Flooring.jpglooking for offers to $100
(easily worth that considering the quality and todays exchange rate.)