'72 Seat backs

[Tom L.]

The plastic seat backs in my car are shot and need replacement. When looking at the different vendors offerings I found three different descriptions of their parts: repro ABS Plastic, Repro Heavy duty ABS and one vendor that sells repro's and also one they say is the correct grain and texture. The pricing is not all that different but was wondering if anyone has found a correct repro that fits and lasts.

While I'm at it how about radiator, shroud and hood seals?
Thanks!