Well I used the dye and it looks pretty good. I used the VHT vinyl dye and the duplicolor degreaser(VHT wasn't available at parts store.) Used the Satin white on the door. I saw afterwards that another company has an off-white that probably would have worked better.
The degreaser really took off most of the paint/dye on the upper portion of the door. Lower portion, which is more vinyl than plastic held the original color pretty good. Took one can for the driver door. Prep took a lot more time than paint. Looks way better than before, may not be show quality. I will see how it stands up and report back in 6 months if anyone is interested.