RPR-Motors GmbH (
https://www.rpr-motors.com/), a firm that has done many remarkable things apparently in improving the driving experience of the Pagodas, offers an adapter for W126 brakes for Pagodas and other old Mercedes cars. I'll be purchasing a set, as well as some new Bendix brakes they have, for my own car. Cost to me, delivered in FL, came out to be about 2k euros.
Wheel hub is claimed to be 50% lighter than the original. They also make the brake discs. Below is a photo of the wheel hub they sent me. It seems like the work they do is of a very high quality.