Considering new gaming setup

Currently I use a 15ft usb extension and sit on the couch when I game on the pc. Seriously considering going to a set up like this in the garage or something:

Do any of y’all have experience with a setup like this? Is a 1070 good enough to run 3 monitors?

A VR headset could be had for roughly the same price, but I’m not quite ready to bite the bullet on VR yet.

Should also mention, I dont have an office of the traditional type, so a regular desktop setup with a chair is out of the question.

I do have an office and because of that I sort of defaulted to getting desks…wish I hadn’t. If I had to do over again I would definitely have gotten something like in the link you posted.