So I now have 12 consonants and 10 vowels. Not the 7 vowels that originally began this chain of thought in my original series a few years back.
These are the consonants I'm left with;
And these are the vowels;
Giving us an alphabet that looks somewhat like this;
However, if we ignore the removal of the "push" consonants - which would perhaps be more sensible at this point - then we would get this alphabet, with 16 consonants and 10 vowels. Back to a full 26 :)