Seven Axiom SLX, 4-season and all-road

My current thinking is now:

• Seven - either Axiom SL or Evergreen Pro or 622 SLX - whichever gives me the best comfort and accommodates wider tyres
  
• Shimano Dura-Ace R9170 Di2
  
• Quarq DZero Four crankset
  
• Enve 4.5 AR Rims with DT Aerolite spokes on DT 180 rims with center-lock for the discs
  
  

But... will test ride me some Di2 before I commit to going Shimano. Will also want to look at the frame extras and compare stiffness and other minor things to decide on the frame.

I'm probably going to blow my budget, even with help from lovely people on here.