We ended up replacing the drive train except for crankset and BB:
Ultegra 6703 STI shifters and FD
XT M772 SGS RD and CS-M771 10 sp 11-36 cassette
Dura Ace 10 sp chain
FSA 52/39/28 chainrings. The granny is steel
We rode it last night and we like it. This weekend we will try it in som 17-20% grades