Based on personal client experience, the ones most likely to need the service will have the least desire to pay anything for it. If they are willing to spend the kind of money to get things done at a high level, they will have already paid someone more qualified the first time around and avoided such problems from the start.
This can't be said enough. Most people either know they need polish, in which case they work to add it, or they have no clue, in which case they think it's pointless and won't pay.
I don't see why you'd separate it, anyway. Just be a standard web consultant. Polish is always a part of looking up web sites.
