Thanks Corey, Solo is a reasonable workaround for this gig. That was a 'duh' moment for me when I read your post.
Thanks Mike for the tips, I'll look into X32-Q. That more simplistic interface may be exactly what I want.
For this gig I have 4 volunteer assistants, one for FOH, one for recording, a stage manager, and a tech on stage. 5 minute switchovers between bands, shared backline,.. Me, I'm gonna wander around and have some fun this year, and play in a jazz quartet and a bluegrass/country band. It's not a normal festival, this is a private event I've organized and sponsored for the past 7 years for my customers. The audience will be 70% musicians, and some event organizers and friends,... It's become something the community really looks forward too each year.