>I imagine there's a lot of people who need help in getting these tech setups going with a bunch of trial and error and then after that they can independently operate. Are there any volunteer groups that help with that?

I'm pretty out-of-touch with the accessibility/advocacy world, but should such a group exist I think that it'd be a blast to work for/with them. Giving someone back an ability is something that may be minor for some, but life-changing for others. I would imagine that it would be immensely gratifying work.

I know of groups like AbleGamers that have helped with gaming accessibility as well as providing equipment for people on a limited-basis. I think they were also one of the forces behind the XBox Adaptive Controller, which was a boon for some.