All posts were very helpful in my endeavor. With your help I was successful. I can add one helpful hint. To back off those pesky mounting screws, simply use a pair of needle nose pliets and spin them off in seconfs. No need to scrape buckles!

 

Thanks for the inspiration. I've got the part sitting aside for my passenger side window and simply haven't wanted to do it yet.

 

Pliets and scraped buckles? Auto-correct fail...

What pesky mounting screws?