........dont know how useful this'll be to you, but we can get these in Australia from USGM Service parts (see link)..............if you cant get any locally from your side of the world, it may be worthwhile giving these guys a ring and ask who there supplier is, so you can source from them................ask for Dave - he's quite helpful..............

https://pontiworld.com.au/usgmsp/product_info.php?cPath=199_393&products_id=8335

I think one of their suppliers is PW Distribution in Las Vegas - maybe worthwhile checking there first........see link

http://pwdstore.com/advanced_search_result.php?keywords=pontiac+interior&search_in_description=1&categories_id=31&inc_subcat=1&manufacturers_id=&pfrom=&pto=&dfrom=&dto=&x=24&y=11