X-Pro 2 Back-up Camera

I'm not sure where to put this but since I already have the X-Pro2, this seemed as good a place as any.

I am looking for another camera body to back up the X-Pro2.

I like the rangefinder style so that would suggest either the X-E3 or the X100f which are my two choices right now.

I really like the hybrid viewfinder of the X-Pro2 so that means a lean toward the X100f.

But I really would like the ability to change lenses so that shifts the lean back toward the X-E3.

Your thoughts?