What was always going to be a spendy and elbow-grease heavy, but fun, endeavour has turned into a comically difficult affair. Things are out of stock, suppliers of smaller but essential parts have gone bust... forget it. Paradoxically drivers are not the issue, I have new TAD TD-4001 and TL-1601 inventory for another couple of pairs of speakers but cannot see a viable business model anymore, even as a side project.
I'll keep this blog up for other audio and record collecting adventures...