Phatman,
Crux is a very close geo match to your Kona. Lower bb drop is good for a little more stability.
You could always consider swapping in an angleset from Works Components UK, to get the trail close to what you're chasing.
I also like a light build. Going over you list, I'd say there's more options out there if you have a decent budget.
If buying a complete you may need to tweak the low end for climbing.
Have you also considered if you may need/want to run a larger tyre than Crux specs?