Looking for fin rails in longer lengths

[briandshelby]

Hi all, I'm making my own fin blades (day job is a composites engineer), and I need some of the low profile plastic edging that locks them into the foot pocket rails. I want to edge the entire length with the thinner plastic like a friend's Dive Rs, not the tall water channel stuff. Anybody know where I can buy it in bulk?

I asked both Neptonics and Mako, and they can only offer it in the 13" lengths at the links below.
https://neptonics.com/product/replacement-fin-rails/
https://www.makospearguns.com/Replac...ils-p/mrfr.htm

Pics of fins here:
https://www.dropbox.com/sh/edlwjhdft...6n_83Lcya?dl=0