parts needed for 71 duster 340 resto

Hi Guys,
Im going to begin resto or rehab on my 71 duster 340 soon and need to start tracking down some parts. I bought this car in 82 and restored it for the most part back then when you could still buy sheetmetal from the local plymouth dealer, so the body is great and I need mostley interior parts. I know I can get most of this stuff new but maybe some of you have some stuff that you bought new and didn't use for whatever reason. Heres the list.
Ralley dash, I have the original but when I was 17 I thought it made sense to drill holes in it for toggle switches and gages.
door panels front and rear black- covered the originals with button tufted vinyl.
headliner black
dash pad black
correct hi back buckets- I dont think whats in it are correct, and don't know how to tell.
rear floor pans

If anyone can help let me know.