Hey there, so I'm writing my comment BEFORE I read any other comment posted because I want to focus on my initial thoughts without any influence from naysayers that may pop up (it's social media, right?)
That being said, I think the idea you have is pretty freaking cool! You're

right when you said you want to focus on playing your instrument rather than fighting it while you play it, which is a total waste of energy.
Additionally I agree that folks may look at what you've proposed and because of asthetics and/or tradition will write this off. Poppycock, I say! At the end of the day we are trying to make music and because something looks different or is really far outside the box of what has been accepted is no reason to deride alrernative designs. The mindset of "this is how we've always done it" does nothing but keep you where you've always been. I applaude you for putting the work in both mentally and mechanically to try something new.
I do hope someone out there reaches out to develop this with you, and I'd get in line to give it a shot if that happens. Heck, even before that, if you need testers. Glad to see innovation and forward thinking that could help people keep make music with less strain as they progress deeper into their lives. I'm impressed!