with respect to posture,have you considered this opens you up to computing in a supine position? Quite a few people have experimented with this and find it helps.
I'd prefer crypto as a payment option too. Not sure if Kickstarter offers it as an option though, so I presume that would be the core constraint. sometimes I've seen projects running on Kickstarter and Indiegogo at the same time. Maybe there is some kind of workaround like that, except for adding crypto as a payment option.