I went with a new windshield in my 66 wagon last summer. I live west of my day job and driving into the sun, sometimes both ways, looking through a 50 year old sandblasted piece of glass isn't fun.
Cost about 300 bucks, with the $120 shipping , and another 70 or 80 for the new gasket. You need a new gasket! Try using an old hard one and you'll probably break the glass.
Anyway 400 bucks I can see where I'm going and not run over deer or joggers.
That's cheap in my book. (not that I like deer or joggers but they leave a big dent)
Anyway it might just be time for new glass.