Hello,
This opinion is from 19+ years of tattooing.
You explained yourself very well. Any real artist can do this for you (not a flash tattooist). Find someone who does custom work. Make sure they can back up their bragging with an extensive portfolio. Ask a lot of questions about new needles and safe practices in the tattoo area. If they don't seem happy to help you, leave.
A lot of talented people are tattooing these days, so don't settle, and don't be cheap. The best scenario for what you are looking for, would be to have the designed sketched right on you. This would flow better with you body lines. If someone can't do this, leave.
Be patient and picky... you should be the purpose of your tattoo artist's day, not an interruption. They should be as excited about doing something this cool as you are. Good luck.
Inking of you,
- Smooth
Smooth Fx Custom Tattooing