Nice looking 1972 V156
I had the center window and got a vinyl hinge for it, mounted it and used it one time.
It would rattle and bounce around .. very irritating ..
I would get a piece of clear vinyl and velcro it to sides of windshield.
When not needed .. you could roll it up and stuff into side pocket or under seat.
Plenty of junk/ cheap V156's on Craigslist and Marketplace.
Offer to buy just center window, shipping wouldn't be to bad even ..