I understand your dilemma with certain agencies not being the appropriate service for you, but they are ones that needs volunteers!
Isn't it just so much fun working with the blind? My job is just wonderful. The paperwork is a bear and I am no big fan of it. Teaching the students is the best! My specialty is in teaching braille and the young blind, and literacy. I'm happier that a "pig in a mud puddle" when I'm working in that domain.