I bought a Delco 10si alternator at autozone for $25 + core with a 3 year warranty, and they let me choose how I wanted it clocked, too. I know some originality is nice but an alternator works way better than a gen, even with an electronic voltage regulator.
However:
I'm willing to help out with a Stovebolt solid state regulator kit design if someone wants to collaborate with me on the assembly and packaging.
I have a stovebolt and am an electrical engineer, as well as free access to Tektronix's entire reportiore of test equipment.
The regulator should be a simple matter of a 50 amp power FET for the Gen cutout, a current sensing circuit (for the overcurrent cutout), and a voltage regulator circuit which controls the field of the generator. It should cost about $20 in parts for small quantities. It could even be made to work with both 6 and 12V designs and positive or negative ground with a little re-configuration.
