I would be careful about any stabilization or electronic shutters.
there were some posts here with a7rII that had issues. not sure if it was resolved but it was probably due to one of those features.
generally i use a d810. but have also just done some tests with phantom 4 pro. and small sensor dose help with dof.
but your probably best to just using a tripod with current camera and shooting higher fstop.
depending on what your shooting, you may want different lens options.