Mine is a perfect fit. I just trimmed the outside, as you stated. You DO have to be careful to get it in proper position, because it is molded to the glass shape, and if it's off position, it will not be tight against the glass due to the curved shape.
That shipping price, however, seems OUTRAGEOUS!
The thing can't weigh more than a half pound!
If it would be considerably cheaper, I would be willing to order one here in the US and ship it to you... You pay actual costs for product and all shipping, of course.