Phil,

I never did sweat matching precisely the window seals. I looked for one that was similar in size, and if it was not rubber, used a "closed cell" weather stripping. Fact of the matter, most of my replacements have been regular hardware store foam weather stripping because I could not match the original rubber seals. Just be sure it is "closed" or "tight" seal which is more compact and more water resistant. If they call it something else, any good hardware clerk will know what you are talking about.

Keep on keeping on.

Donald