What the FAF is the point of owning a Dodge if you DON'T drive it? :-D I've done quite a few miles in mine, wet, dry , hot and cold, including some experiences that you'd not get in any other vehicle.
Have a look around for an independent windscreen fitter. I'm lucky enough to have a great guy locally who will cut to size and shape. He's normally cheaper than the big suppliers, and as you usually cut from a standard sheet you get a spare for the same price!
I was taught to make emergency gaskets from unglazed brown paper, often from envelopes. :-D The art of tapping around the edge of the casting to cut the paper.
On a 70 year old vehicle, what is 'Factory Fitted'? Military vehicles , being working tools, not rich mens's toys, are repaired, altered and built from bits throughout thier days. Are all the bits original pattern?
No for that I split a tin can down it's length, then smear plenty of repair paste in and secure with a couple of Jubille clips! I had an old Montego that went through a mumber of MOTs fixed like that. It is after all a metal to metal repair! :-D
Thae's where the Old Fashioned Baler twine would have been more use! You tie a bit to the throttle spring and run it out the bonnet and in the driver's window! Full power Scottie! :-D