hey gig! welcome to the garage! you found out how to post, now you need to do it in the right place!
there isn't a "49 burb section" there's a forum for all panels and burbs, and there's also a swap meet area where you're welcome to post your wants in the "parts wanted" forum - original side windows won't be easy to come by but someone may have some spares
you can learn a bit about the forums generally in our handy GloveBox Manual linked below, and see how to get around in this big ol barn
Bill