Same experiences for me with that forum. Plus two "wannabe part dealers" with quite a strange behaviour (I've read the story about the headlights...). This forum here is much more technical. So you're in good hands here.
Thanks for the description of the ALB system. According to the image of the system I'm wondering what happens if the piston in the ALB is faulty and lets air from an empty ALB system into the main brake system ->long pedal stroke. On the other hand the master brake cylinder is leaking (sweating) which has to be addressed. The car has been sitting for more than 10 years...yet the owner has still to decide to wake it up.