Proposal for the inclusion of Sorabji-Finnissy transpositions in the Octaves supplement

Kaikhosru Shapurji Sorabji was an English composer who used a famously
idiosyncratic method of notating octave transpositions. Specifically, he
was known to use a capital I with a caret above to indicate a section to be
played an octave higher than written, and a capital I with an inverted
caret below if it were to be an octave lower. Playing two octaves higher
was represented by a double capital I with a caret spanning both. These
symbols have also seen use in the modern era by Michael Finnissy.

Prior to this, he utilized a symbol consisting of a capital I written
directly above a capital VIII, which can be seen in his Piano Sonata No. 1,
for instance. Occasionally, the two methods were combined and a caret was
written above this fraction-like symbol. I would like to propose these
various transposition markers be added to the Octaves supplement in the
following order:

U+EC99 - I with caret above
U+EC9A - Double I with caret above
U+EC9B - Triple I with caret above (theoretical)
U+EC9C - I with caret below
U+EC9D - Double I with caret below (theoretical)
U+EC9E - Triple I with caret below (theoretical)
U+EC9F - I above VIII