I would take the approach outlined in this book:

Hair Test Interpretation by Dr. Andrew Cutler

Basically, you can have the tests done inexpensively and then interpret them for yourself based on information you find in this book. Unfortunately, the interpretation is a little complex (hence, the book on the subject) because you're searching for combinations, indicators, patterns, etc., but it's nearly impossible to find a doctor that knows how to do this.

That's what I would do. It would be pretty inexpensive as well.

Hope this helps.