Wherever you are, you might check with sailmakers or trimmers (the folks who make soft dodgers, etc.). We bought some through a sailmaker
recently. I would have tried Amazon, but the shipping
address that we don't have is a problem.....
By the way, I chose black, but on thinking about it, perhaps clear is the best way to go. The black goes invisible against black webbing, and so would the clear, but any mistakes
you might make wouldn't have to be removed, necessarily, if in clear. I have also used white Tenara, and for our colors, I like the black better. Sapient Sue (here on CF) has been using the clear for a while, and thinks it is best.
By the way, I like working with it, and it feels great to know I won't have to be re-sewing in 4 years, as I had to with V-92 dacron.