I'm interested as I have a box stock kit planned, but it will be a while before I start it. Since this is an open-ended CBP, it doesn't matter how many people join now. Josh, if you're building one box stock now, I say do it here for your CBP and people might join when they see your dedication.
Box stock is incredibly hard for me. If it's just the wheels, something is gonna get changed. But that in itself makes it a challenge.