I've participated in a short version of this experiment as part of my psych lab class! We used goggles that shifted everything sideways, rather than upside down, which is obviously less radical. We found we could adapt to a certain extent (enough to take a few steps without collapsing, then pick up a ball rolling along the floor) within a couple of minutes, and a few more minutes was enough to throw and catch at a few metres reasonably reliably. Taking the goggles off again was disorientating for perhaps a minute or so.