That is too bad for Kreg; looks like they lost a customer. I wonder why they can't sell longer lengths?
I recently contacted Incra about their rails because I wanted some custom sizes (like 3 26" pieces) and they were: "No problem, it is $x/foot and there is a small cutting charge." After some back and forth, we determined that for my needs, the best bang for the buck would be to simply buy a 72" rail and cut it myself. As it turned out, I wasn't totally sure about the sizes of the rail I will want. The rail was $50 and $13.72 to ship it to me out here in the SF Bay Area. They also have 96" rails that, I think, are $75 a pop. The 96ers are a little more expensive per foot and will cost more to ship.
Too bad it didn't go like that with you for Kreg. I wonder if Incra rail would work for you? Why don't you email
mark@incra.com and ask him.