I was merely pondering the subject and not offering any specifics other than what is in the ads themselves. Transplants have obviously been performed to a variety of recipient power plants. I have no information about success or any required efforts.
I have seen 1 wire and 3 wires. "Advertised" amperage outputs vary from 35A to 90A, and even higher. Whether this is suitable for a street vehicle that deals with traffic and air conditioning, unknown. Some of the Denso housings look like they "might" fit the typical M30 brackets, which is why I posted numerous examples. Still, it is hard to determine the fit from pictures alone. Some of the advertised units are for industrial or marine applications, but that would not necessarily mean they should be eliminated from possible consideration. (Some E3s and E9s look like they are no strangers to harsh conditions.) Blogs may cover this topic in general, but a cursory search did not reveal any specifics regarding a retrofit to an early '70s M30 engine. The transplant has likely been performed on other European vehicles produced in the late '70s early '80s, but again, I have no specific information, hence my post. (I have not experienced any out-of-the ordinary problems with the Bosch alternators, and have no specific need for an alternative, but was thinking "outside of the box".)
This might answer some questions for you:
https://www.fuelcurve.com/powermaster-performance-100mm-alternator/
http://arengineering.com/wordpress/wp-content/uploads/AR019-Denso-Alternator-to-Big-Block-Kit.pdf