Scooper

I would be cautious about having a hobbyist build a custom frame.

Not many hobbyists carry liability insurance and at least some lack the experience to properly design a custom bicycle that fits a client and to ensure the construction (brazing or welding) meets acceptable safety standards. As a hobbyist, I don't mind risking my own neck riding frames I build, but I wouldn't want anybody else risking their necks on frames I build until I have a lot more experience.

A custom Gunnar would be a good way to go IMHO. Their dealers have Waterford factory trained fitters.