Chevy & GMC Vans

I have a 1996 Astro. The parking brake is sticking, had it checked out, and it's super rusted. Located in Seattle so lots of rain right now. Looks like it needs to be replaced, but the part is discontinued.
Part:
https://www.gmpartsdirect.com/oem-parts ... Ni1nYXM%3D

There is one available for different year astros but it doesn't look like it fits. I've been looking on ebay and called a few vintage car parts places but no luck. Any ideas?

try rockauto.com