For what it's worth...
They are now offering new pre-cut ABS headliner kits for the burbs that are compatible with all of the original headliner bows....

Don't think I am allowed to post a direct link to them ...but you can search eBay using....
"Headliner for 1947-1953 Chevrolet, GM Suburban ABS Plastic".
Attachments
suburban headliner ABS.jpg (31.04 KB, 199 downloads)