Alpha 7 V

Agreed, unless OP is only using 1 or 2 lenses they'd probably be better off with the new Sony a7V. Learning a new system, getting new lenses and batteries for essentially the same level of quality doesn't make a whole lot of sense.

Is this for work? The wording of "got a budget" makes it sound like an employer is paying for this. If the job doesn't require nature photography, I would cut that from the list of use cases. If by nature you mean wildlife, that often requires much longer lenses. With the other use cases, I feel the