Not really a fan of that 67mm bbdrop on those frames. Personally I'd prefer around 72mm or so if running a larger 650b or mid-700 like a 42mm.
As they're pretty close though, I'd definitely test ride one. Get a feel for the geometry. Ideally I'd be looking for a threaded bb bike.
Seems you like seeking out similar rides to me. Just getting into overnighters also. I like to keep the bike and gear weight down where possible. My build is 17.5 lbs, running 650b x 2.1 at the moment.
If you knew what you were doing you could build up something like a Carbonda frameset with a few previous gen higher-end secondhand components to keep the weight and price down.