Try Top Creations in Oklahoma. They supplied the top for the ECS 4 door Barracuda concept car. If you do some digging on the ECS page for that build they talk about why they used one from them vs the more common guys.

The owner is a super nice semi-retired guy and makes them in house using Haartz material.

https://www.haartz.com/vintage-restorers-guide/current-options-top-materials