There is a book. Richard P. Talbot; Designing and Building Your Own Frameset 2d ed 1984. It was self published and is now out of print. Some libraries still have a copy and it is available on E bay at ridiculous prices. Richard Talbot used to live in Needham, MA, but moved away in the mid nineties and I have not been able to find out what has happened to him. I recommend it as a book to read before attempting to build a frame, or having a custom frame built for you.