Hey moparzepjr,
a couple weeks ago I was on eBay and I saw a seller who was selling a set of these same 71 upper door panels but they were in white. However, I was later watching a show called Garage Squad where they restore people's classic car. On the show, they had white vinyl seats for a Duster and they wanted to convert them to black.
They used a vinyl and fabric dye aerosol can that dyed the white to black and they came out amazing. Couldn't even tell they were dyed. Unfortunately, I went back to eBay to look for those white '71 door panels but it looks like they sold already. But, I would keep and eye out for white ones too. Consider dying them for the look you're going for. Trust me, they look awesome once they're dyed. I'll continue to keep and eye out for you brother. Haven't forgotten about your search!!
~Ritchie