If I'm not mistaken, that's got Shimano 105 derailleurs and DuraAce shifters...should be pretty clean shifting.
Di2 is certainly something you can retrofit to the bike, and it removes housing friction and possible errors in cable routing from the equation.
The 7.5 cockpit can be ordered via your Trek dealer. They simply need to search for "7.0 cockpit upgrade" in their ordering system and they'll get a worksheet that walks them through all the choices (stem, mono-extension style, etc).
Carl Matson
Di2 is certainly something you can retrofit to the bike, and it removes housing friction and possible errors in cable routing from the equation.
The 7.5 cockpit can be ordered via your Trek dealer. They simply need to search for "7.0 cockpit upgrade" in their ordering system and they'll get a worksheet that walks them through all the choices (stem, mono-extension style, etc).
Carl Matson