Question 1, what happened to the bowl you want to replace?
If it's Tupperware and you still have it, you could contact a Tupperware rep and get a replacement at no cost or for very little cost.
Question 2, how much time do you need before you have to have the bowl?
If you have some time, and are inclined to do so, you could find a replacement bowl at a yard/garage/tag/estate sale. I've gotten some of my best Tupperware pieces at these places. Plus, you may find another bowl that fits your requirements just as well.
"As a girl I had zero interest in the stove." - Julia Child
This is real inspiration. Look what Julia became!