I have a "08 VDP with NED interior, and have acquired some random interior bits, hard plastic, that need to be resprayed to match my originals. Any ideas about how to proceed?

 

If you can't locate a suitable premixed paint to refinish the panels then find a panel beating supply store that offers a color matching service for custom paints, give them a sample panel with the color you are trying to replicate.
They should be able to mix something up (perhaps not while you wait).
I have used a local service here for some years and I hand them something like the fuel filler door to match the touch up paint (for exterior paints of course), but they can do the same for plastics as well.

They should be able to match it with an appropriate plastic suitable paint finish and it might be more practical for them to supply it in a rattle can for you, if it is a small job and you don't want to set up a spray gun.
You might want to also pick up a plastic adhesion promoter to get some good bonding onto the base material.
Discuss your project with them, they should be able to advise the best prep and final coat products for your project.

Failing that you might want to talk to an automotive upholsterer, as they are repairing and recoloring vinyls, leather and other interior components and may have suitable acrylics they have used in the past.

Good luck.

 

You also need the color name.
Here is a Jaguar interior color spray dye supplier. They should have it or something very close.
Jaguar Interior Spray Paint
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Many thanks. My color matching so far is only so-so. I have ordered the appropriate aerosol for the ivory plastic parts. Fingers crossed!