it only cost me £60 for a machine polish and wax. But he told me that almoste every panel has had paint at some point and poor paint at that. So he could only give it the very lightes of machine polishes because he doesn't know the thickness of the paint and didn't want to go through the paint.
He washed & dryed it first then machine pilished it and applyed 2 coats of wax, he also done door shuts, sills and wheels. It is much better than it was before but I'm thinking about getting it sprayed now as I'm still not 100% happy with it.