"My dealer is under instruction to call me as soon as they pass a one year anniversary on a M3W that hasn't required any rectification work"
Good luck with that. Waiting for perfection is often hopeless, elusive and a waste of time. The only thing that will occur with this mindset is that one gets older with nothing happening. at all. forever.
In the meantime, you could just get the darn thing, have a bunch of fun and find that, despite all reservations, nothing untoward breaks and you've had a ball! So far, I have racked up 4,500 miles, endless smiles, one rectifier/alternator replaced and everything else just working. That'll do!