As said, if he is a propper wheel man with a top set up like, bead breaker, blast cabinet and wheel booth in his van then im sure you will do a good job although ask to see some of his work first so that you are happy with it.

If he is a smart repair guy then chances are that he will just jack the car up, mask off the tyre, repair scuff and paint outer face of alloy.
I would walk away if he does this mate.

If he is a propper mobile wheel restorer then he will take the wheels off, fully degrease them, fill any curbing/scuffs, da sand, Prime, then two coats of 2K base coat along with 2k ISO lacquer.

He will then cure them with IR or UV, whatever his set up is.

Price for above is average from £50 per wheel.

As someone once told me, you get what you pay for.

Can you post up some pics of your alloys so that i can see how much work is involved etc?

CheeRS

Chris @ PRP