I feel with you I just lost the oppurtunity to go on tour with Six feet Under and Disbelief because of folks, who aren't 100 % in this thing. I think about doing the same... unfortunately I'd call them friends of mine, so it's not that easy to make a cut.
I hope you find motivated new people. You are young, your talent is extraordinary ... everything is going to turn out in a good way
P.S. Oh ...didn't recognize you've already found someone. Congrats!