Hehe yeah, generally I need two bottles. But I have one of the SKS adapters for seat post that fits where the second cage would be on the frame as well.
Aye, it's the 11 speed 105, 5800. Ordered in bits and pieces as things appeared on sale. Honestly, it took much more patience and time than I cared to have.
No stickers! Get the real deal for $10.
Cinelli Pillar Nero Seatpillar - Seat Posts - Ribble Cycles
or extra fancy for $15.
Cinelli Vai Seatpillar - Seat Posts - Ribble Cycles