Thanks Colin, I appreciate you going to the trouble just to satisfy my curiosity! I had no doubt there was something like that, and that your replication would indeed be strong enough - just couldn't see it on any of the progress images, and am interested to know and see what it is.
You mention you are a drive train short - hell, Colin, just make one: you've done everything but that already!! I can see by the posts we are all marveling at your capacity to 'just make it', so I don't think it would surprise any of us if you decided to do just that!!
Best
Mike