No joy here in Mudville (baseball poem where the mighty Casey struck out). After exhausting my bag of trouble shooting tricks, I had the rig transported to Brighton Motorsports just across town. They no longer sell Morgan’s but still service them and Simon, the mechanic, is quite knowledgeable.
After determining that there was adequate fuel pressure, he found zero compression on the suspect cylinder. I should probably buy a compression gauge.
Tear down and diagnosis to follow.