I,too, have a Dynaplastics top in need of weather stripping. I think side window rubber from Smoothline (Parrish Plastics tops) will work but have no clue for the body mount area and under the back window. Smoothline uses a strip of foam for the windshield mount area. Can you forward to me the info someone sent you on how to make the weather stripping? To the best of my knowledge, no one makes replacement rubber for the Dynaplastics top.
Larry Y.