I know decent guys that have built ARFs for $60. Average I've seen is $200 to $400. It takes me at least 60 hours to do an ARF to my satisfaction... I've built a couple for money. One for $600 and one for $1200. That's still working for peanuts, but considered extremelyl high in the hobby. The problem with trying to make money building models for modelers is that modeling is part of the hobby. The money is in building ARFs for guys who are not modelers... but they tend not to stay in the hobby for very long... unfortunately.

Point is... IMO... you gotta enjoy building to build for someone else at "standard" prices. If you're doing it for the money you're better off getting a job at McDonalds.