One trade off on the BBS02 kit is that it comes with ebrake brake levers to replace your cable levers. I believe they sell something that allows hydraulic levers to work, but you will have to fiddle with it. Of course, if you''e doing a kit, this is part of the process.

It's cadence sensor. Torque sensors are over rated, especially when you have beau coup watts. Use 9 level PAS though.