The cost for a job with a couple of colours and some gemini for a flip finish is about £150 plus decals and I then have to pay an artist as much as I want to spend on airbrushing , in the case of my nomad I gave him a £100, if I give him more he will spend a lot longer on it , or less for less.
And no I havnt sold it yet, its a bit overpriced but Im not willing to part for less than £1400 as it woulnt give me enough money for the next project.
As someone said you cant earn a living painting bikes. Its more to do with love of bikes.