John,
the wood shop need not be a bottleneck. I believe that the ash bits, perhaps not mechanically vital, are a key part of the Morgan "USP"
With the "metric" platform there is precision. A precision wood frame is perfectly possible if MMC would use modern CNC driven wood cutting machinery: with every part the same, assembly would be positive and quick.
Ash is a group of 40 or so related species, there is a lot of ash in the USA, China and Korea, (Fraxinus chinensis). So although MMC might have to cast their net wider they will not run out!
