Need Black Kick panels, arm rests

I'm looking for some black interior pieces, inclucing black kick panels and black arm rests. I'm sick of painting them. I've tried every paint, primer, prep possible and still the paints just don't hold to some of the plastics in the car. Other plastic inclucing the center console came out great. I did that years ago and it still looks factory, but the armrests, kickpanels and scuff plates are another story.

I know 50resto sells some stuff, anybody know of any other places?

If you look at the picture you can see the paint chipping and peeling off.

thanks in advance.

did you use anything special to clean them with? any scuffing?

how are the rear quarter panels holding up? Some of the panelling on my car looks great, other places not so great.

Has anyone tried adhesion promoter before painting?