Adding 2 diacritics to the Latin glyph set?

[aiongg]

Hi there, I'm wondering if there's any possibility of adding the following 2 diacritics to the Latin Plus glyph set:

0x030D ̍ COMBINING VERTICAL LINE ABOVE
0x0358 ͘ COMBINING DOT ABOVE RIGHT

In principle, these two should be fairly straightforward. Most fonts already have glyphs with contours that can simply be reused at these 2 codepoints. Any plain vertical line component can be re-purposed for 0x030D, and any standard dot (e.g., 0x0307 COMBINING DOT ABOVE) can simply be re-used for 0x0358.

Also, I'm not sure which set this glyph would belong in:

0x207F ⁿ SUPERSCRIPT LATIN SMALL LETTER N

These 3 glyphs would add support for Taiwanese written in Latin script. (A different popular romanization requires only 0x030D, but that romanization is typically used for phonetic reference only, while the script linked here is used a native orthographic alternative to CJK characters.)

Additional information, not sure if relevant:

• 0x030D uses the normal "top" accent position above alphabetic characters (specifically the set a e i m n o u, lower and upper, but most fonts already cover A-Za-z)
• 0x0358 is positioned at the top right corner of o (and optionally e i u), lower and upper