Andrew,
G'day mate!
At the risk of mentioning a fairly NON-prog band, are you familiar with "Not Drowning Waving" from down (there) under?
I was exposed to "Claim" as a campus DJ in the early 90s here, but when "Circus" came out, it became my favorite album for quite a while! I likened them to latter-day Camel in some ways, but loved the instrumentation. Some reviewers even used "prog" to help describe them.
I found a collection called "Follow the Geography" but have never found anything else (anything worth hunting for?)
Anywho, they might be too 'pop/rock for the Moon, perhaps not....but wondered if you had any notes to offer....
Welcome to the Moon!!