For anyone that’s following this thread, and what apparently is the on-going development of this font, there’s a couple of other threads here that directly relate to the direction I’m going with it (and problems/solutions).
Here’s one…
…and here’s the other (this thread was started by a query from PJMiller)…
Some really good stuff in there! Very thought-provoking for me, and hopefully informative, too, for others who might find themselves with similar questions in their type projects.