I'm looking for white plastic interior pieces for my Hurst. A pillar,door panels,seat backs. I know these parts are hard to find in good condition. Just let me know what you have.

 

It is very unlikely that you will find ANY usable interior plastic in white. Parts Place actually makes A pillar plastic in black.
https://www.thepartsplaceinc.com/old...ID=4&year=1976
Swivel bucket shells in nice shape are hard to find and if you do they will probably be attached to the rest of the seat and expensive.
There is a member on the 73-77 site that had his son spray white Line-X bedliner material and his old white flaky swivel bucket shells. The pics are gone from the old thread but I remembered that they looked really great. The texture wasn't the original grain but was much better than the old worn parts.
http://www.73-77olds.com/forums/show...=swivel+bucket
You will probably have to find good used plastic in a dark color and dye it white.