I need a compact crankset for Horribly Hilly Hundreds. Shimano, 50/34, 10spd, 172.5 or 175 mm arms preferred. Only for this event, so doesn't have to be fancy.

Or any Quarq, P2Max, etc. compact powermeter crankset w 24mm spindle, bonus points if you have a matching Bb90 press-fit bottom bracket to go with it.