Windshield - Restore or replace?

Ok gang, I'm close to removing the windshield from my 65 Valiant convertible for some major cowl repair. I'm pretty sure it's been in there since 1965. It's all in one piece but it has scratches and looks old. Should I attempt to keep this one and restore it somehow or just get a new one? I've seen new ones on ebay for around $265, which doesn't sound bad. The seal is dry rotted and will be trashed either way.