I can't comment on the specific rub rail profile you need because my Saltare came split in two with no rail at all.
A number of the online stores will carry the inserts in different profiles, colors, and lengths. The site I've linked below shows an image/example of some of the different profiles available. You can also get specific dimensions of the profiles from the taco marine site. They are typically sold in either 50' or 70' lengths...you will need 70'. I hope this helps.
https://www.fisheriessupply.com/taco...12-4144bka70-1