Camera for street photography?

Hey everyone, I have a bit of knowledge when it comes to photography. I own a 5d3 and a 7D but I am converting, I'm getting tired of carrying around all these huge lenses and bodies. Photography is just a hobby for me so I don't need anything specific.

I would like to buy a smaller camera to use for street photography. I've been looking at the Fuji x100s and from what I've read here a lot of people love it. My concern is low light, I've seen some people use it at high isos but they converted it into black and white. I think it looks amazing but would you say it's the best option? Should I get more then one body? I was thinking a combo of the x100s and maybe a Sony A7. I can deal with the 35mm focal distance since I mostly owned primes but I do love variety. After selling my current equipment I should have around $5000, I've already begun selling lenses! I would love to hear all of your thoughts!