Derek,
Both
Proof and
Get Bent still have blanks in stock. Maybe not the complete line for either, but there are quite a few options. Iconoglass blanks are still offered at a low price also.
Fiberglass is a bigger deal than it was in 2005. But compared to graphite, the glass market is small. Our suppliers don't have thousands of additional blanks back in the warehouse. Glass orders are small and won't get priority at the blank rolling plants. Building on glass requires patience in many ways.
Meanwhile, what are you trying to build?
Tom