WTB: Shimano 5800 or 6800 drive side 165 crank arms

Hoping someone out there has one of these laying around or
in the process of upgrading. I am switching to shimano with
stages PM for ease of swapping in and out between various
bikes. Trying to save some $'s and don’t need the entire crank
or chainrings.

Expanding my search to Shimano 7000 or 8000 crank arms
.