I was not able to see "Glass and windshield repair sources page" when I clicked on resources.
You have to click the red
Click here for menu link on the Resources page and scroll down. Meanwhile, kdbgoat provided a direct link to the page.
FWIW I've usually asked my insurance company to provide a reference to a glass company that deals with RV windshields. I assume their database contains a list of providers they've written checks to.
Edit: When you get it fixed, please let us know who you used. Thanks.