Reproducing weather-strips

That's awesome, how close to OEM do you plan to get?

Example.

My 67 dart OEM trunk seal looks to have been formed to the shape of the trunk opening and has part numbers embossed into it.

The aftermarket uses a roll that you cut to fit.

Also I have very good condition 67 dart convertible door seals I could loan you if I can be 100% sure I'll get them back in a timely fashion.

At worst I could measure and photograph.

The dart was a garaged So Cal car.

It saw daily driver usage but surprisingly 90% of the rubber is soft and supple