Yep I am on a role tonight I found the company http://www.globalplastics.ca/index.htm Enjoy it... great group of people and they will make custom sizes.
I should warn you that Originally when I started my project I was going to adhere Carbon fiber to the outside and interior of my acrylic domes however during testing I could not get the epoxy to adhere to the acrylic which I found strange I imagine you will have a similar problem with Fiberglass however maybe you don’t want it to adhere to the acrylic leaving you with dome shape.....
oooo hummmm ideas ideas...