When Tom did Lady v's wheels, he did them using a black and decker mouse, varying grits of paper and then simply used rattlecans to paint in multiple layers.
He did them infront of the tv in a couple of days and charged us £20 a wheel.
He told me exactly what to do and said I could clean them up at any time if I wanted, just rub over with some fine paper and pop another coat on. He did them with tyres on, just deflated so as not to pop the bead and make easier to mask and spray.
Honestly Mr Singh, I think you could do them yourself.