As for the font: The font pack did include an unmerged font with just the glyphs. I'm not clear why that isn't included anymore. But to make it easy to publish, I'd create merged fonts of the desired typefaces, so the editing is smooth. It's just that most font licenses do not allow publishing derivatives.
Why would you want to set up macros when you can just copy the chars into the doc? There are many sign variants and there are no established names for these glyphs. It really helps to just see the sign instead some macro name.
The state of the art for researchers in this field is copying image files for each glyph into their docs. It is that bad. So being able to work with Unicode strings is a huge improvement.