I have a control panel and spare nozzles from a high end plasma coating system. With a plasma coating system you can coat with a broad range of materials generally used with metals and ceramics - with exceptional results. What sort of product / object are you looking to coat, what are the benefits you are looking for in a coating? What sort of electrical and compressed air power do you have available?
Is this simply for the appearance of the items? Someone with experience with electroplating might be able to help, I don't know how they get a conductive surface on the plastic, but I know it's done.
Good Luck. I'll let you know if I come across anything in the way of useful information.
Do you have any idea who the manufacturer of the control panel and nozzles is and what is the designation on the control panel. I may be interested in this having run a company marketing Metallizing equipment cnd consumables for over 40 years
I'll pull that information out. I remember it being a well established company up in New England. With your background it'd be interesting to learn more about this sort of thing.