Hard to say.
I read the post below about the new aquarium store. Is it possible that they could order just the right tank for you? I don't know if I would settle for the acrylic tank though. I know that the older types are prone to scratching, although it is possible that the newer ones are better.
As for the $110.00 being fair....well, I guess it depends on where you are. Fortunately for us, we live in south Florida where there are several large aquarium manufacturers. Prices here can be very cheap compared to other regions.

One thing that bears repeating...if you do go with a tank that is wider than the stand, be sure to put HEAVY plywood under it to spread the weight. With a 40 gallon aquarium you can get away with that but with larger tanks you can't.