Tube Chassis Hemi Dart Project

I'm close. Believe it or not, the last part I need to order seems to be non-existent. I am looking for a windshield gasket--can't find one!

Id check with Steele Rubber as well.. I just got my rear window rubber from them.. at the time they said probably 6-8 weeks for the fronts.. that was a month ago... cant hurt to check