Go Credo40 kit, and don't look back!

I mean if you were willing to go all-in for Canon 5D sys, I think you will really reaalllly like the Credo40/DF+/SK lenses/C1 etc. Great bang for the buck!
No, you don't get the kine Live View like the Canon, but I don't gather that LiveView is what you value most (otherwise you'd stick with Canon LV, which is awesome and even better than IQ250/Credo50, which are great backs, btw, but pricey)
40MP is plenty of resolution.

Just my 2cents