67 Dart windshield gasket issue.

I love my 67, but I'm having the crappiest luck with certain parts. Seems to be the worst year for parts between the rest of the A bodies. Long story short, I'm getting my windshield replaced and am having one hell of a time finding a replacement gasket. It's a 4 door, from what I understand the non post and the post cars windshields are about an inch to two inches in difference and in 67, was a 1 year only (for the 4 door) gasket that used the plastic locking strips. Now for the gaskets I can find for it use the metal chrome trim, (to what looks like help hold the gasket in.) Yet I cannot find the metal trim for a 4 door to save my life. The old gasket is getting kind of rough and really should be replaced but I'm just at a loss on what to do with it. Does anyone here have any experienced insight in this problem that may have a solution? If I absolutely have to I'll use the old gasket.