Neither of the first two points justifies fair use. The fact that a font comes with something else, the font’s version, or its intended use, have nothing to do with your right to share. And as far as “business” claim is concerned, it only applies to some free fonts. Neither of the above fonts are free.
I already gave you two possible solutions, one is to have the alternates in varying width (Adobe Arabic’s solution) and the other is decompose it into smaller pieces (The Sakkal font does neither of that). If you know OpenType, it should be pretty straightforward to figure out how to do it.