"Hear ye all in the asylum,"
Thanks to the Google magic fingers of the Mighty Gryphon, I have 20 linear feet of what I estimate is an exact match of the OEM weatherstrip material on my project. If yours is like mine, the foam has deteriated from age and abuse and no the inner plastic edge is abrading the fuel tank paint paint job so aggressively that when I pulled the fairing off the first time the fuel tank now has a vanilla white stripe where the top coat has been worn off completely.
Upon receipt, and once I determine the ideal length I will offer these as a "kit" cut to exact length or by the foot, your option. One set will be roughly 3 linear feet, so @ 6$/foot lets say $18 each plus actual USPS first class mailing to your door. International friends need only ask kindly.