Bob - you can certainly get help and components from some of the links mentioned. If I may give you my opinion - the 4-pole permanent magnet rotor brushless ac machine with hybrid bearings (ceramic ball) is a good starting point.
Calnetix (as mentioned by sreid) are worth talking to, they were a major supplier to one company I worked for, the product being a 100kW 90krpm 4-pole PM alternator with oil bearings. They do in-house both the PM rotors (including the retention sleeve - critical technology, they own the DuPont carbon-fibre process) and the stators, but beware of using magnetic bearings as that is a long-term development.