You know, one thing that I haven't seen discussed is the possibility of nasalized vowels. Say, the first syllable of a morph is nasalized. This wouldn't need to be distinguished in writing. The spaces between words wouild be all the indication you need. (Compounds could be always written with a hypeh). Only downside would be that a syllable ending with a nasal consonant would easily be confused with a nasalized vowel, so you'd have to avoid that combination.