Quarq DFour 170mm power meter, 53/39 Dura-Ace chainrings, $400
This crank is in great shape at just over a year old. The chainrings are also lightly used as I mostly ran an oversized aero ring as well. 170mm crank length.
Shimano 11/12S Di2 set with tt and base bar shifters (mechanical brakes), wires and 5-port junction A included. $500, obo.
Shimano ST-R8060 2-/11-speed Ultegra Di2 STI Brake / Shift Lever SetShimano Dura-Ace R9160 Di2 TT 11/12 Speed Bar End ShiftersShimano EW90-B Di2 Cockpit Junction Box 5-Port
All of this is in great working order and can be connected to 11s components or 12 speed with adapter junction.