Ooohh, that's a pricey toothbar, especially for no exact fit. That's unfortunate. But it sounds like you worked the problem out and have put it to good use. It's the final outcome that's the most important. Congratulations on the new toothbar!!
Here's a picture of my toothbar. It's a Markham, 70.5", $289. Fit like a glove. (Note: I just posted these same pictures on the attachment forum on a toothbar thread).