Might have as much as $1600, but the more saved the better. Also need a lens.

Sony A7r - $434 (well used condition) Sony A7r II - $949 (like new condition) Sony A7r III - $1299 (excellent condition)

Looking at mpb.com. Are the features and improvements worth it for each iteration?

I enjoy urban/street night photography, urban decay, landscapes, and want to get in to portraiture.

EDIT: I have also, and would still, consider a Panasonic LUMIX S5, or a Fujifilm X-T5.