Bianchi???
Bianchi doesn't do custom ti.....do they???

I have a custom ti and carbon Seven ID8 and a stock Seven Axiom.
My DH has a custom ti and carbon Seven ID8.
They are all fantastic bikes.
No one does custom ti like Seven. They will customize the tubing, the butting, the diameter, everything, to dial in the fit and the ride, for you and your riding habits and style.

You cannot consider custom ti without adding Seven to your (very) short list. I am completely happy with my bike and highly recommend them.