This may have been mentioned earlier and I missed it but a BMC Roadmachine 02 sz 56 may suit your needs. I say may because if you want a higher degree of integration the 01 would be the better option.

Stack - 586
Reach - 390
Tire clearance for 700x33
Disc brakes
Longer chain stays and a wheelbase just over a meter
Any stem will work (on the 02)

Good luck with the bike hunt