On the other hand it still sounds like external help is blocked by the lack of this written quality guide and by extension by your personal life leaving you with a lack of free time to complete the guide.
These streams sound like a way to both do stuff (as in working through the current backlog) and show people how to do stuff, couldn't these be turned into actual YT video guides on how to do the things in order to achieve the desired quality as you would write down in the quality guide either way? I mean like doing two things the same time: teaching through actual work. Maybe you could save time with that.