Z6ii or D780? The only digital camera I use (besides GRIII) is Oly E500. Bored of film currently, so looking to get something digital I can abuse. I'm not heavily invested in any digital lens ecosystem, so I'd be willing to consider other options as well.

These were the cameras that I found would fit the bill, since they should be relatively robust and feature good sensors. And based on my research the autofocus on these should work just fine.