Well, I guess that has a short and long, maybe too long answer :D . In short, I used Xgrids PortalCam and I was careful to move regularly and slowly while walking and really paid attention to scanning every corner of that floor. While scanning, I had a 360° camera attached to my backpack and I comment on it quite a bit, so I'm wondering if I should publish a walkthrough through the entire scanning process, but to get an idea of the process, you can view the scanned route in space at this link where the scan is also uploaded in higher resolution:
https://lcc-viewer.xgrids.com/pub/2e197da6-72dd-46e5-b60b-89a2bf103cc8 . Otherwise, I have the entire building scanned on both the outside and the interior from the basement to the roof (you can see it on my account). And the scanning was part of my diploma on faculty of architecture:
https://indd.adobe.com/view/818c55c8-cd94-4449-85c7-e6b341500648