Thank you for the infos. Arwyn's post helped me to get in the right direction.
While the Lucas LRA00604 is still available and quite inexpensive (less than 70euro) at least the variant they offered me had a different connector for the two B+ and D+
On my wiring loom I have the
Bosch/Lucas alternator plugWith the number of the Lucas alternator (used on XR3 1.6l CVH engines) I was able to match it to the Ford OEM number 82FB10300EA.
The AS-PL A4011 alternator is a suitable replacement. It also has the additional M6 B+ connector used to for the white-blue wire to the AutoChoke on the Weber 32/34 DFT carb
Regards
Tim