Shimano Dura Ace FC7710 Cranks - What bottom bracket goes with them?

jv NONONO the ultegra is too big throwing my chainline to hell by about 5mm - i have used spacers to solve this issue but have had to shorten my chain and for the life of me i cant put the fucking chain together with the funny little tool

advice needed as my oyster is run out and i need to ride to fucking work

Explain what you are doing with the chain tool and what bit you are having trouble with.