Where abouts are you?
Theres a few Powdercoaters out by me , Ill get the numbers if you wish, Charge around 40 perwheel.
Then theres
Paint it uk (Chelmsford) 01245248898 paintituk.co.uk
just google wheel refurb or powdercoaters!
Or even better head down to your nearest Industrial estate and your bound to stumble across it , pop in to a fabricaters and ask them where they use , (it will be local to them so local to you!)
Ill pop down to cheshunt and get the numbers later if you wish>: