Is it possible?

[Nelly Darkpaine]

Its easy to get in the building, but standing on it is not possible as the floor is not solid. This is like the upper town area in PDF - we get up there, but the 'floor' wont support you.

The ONLY way to give the illusion is to use the flying glitch, or the airwalk glitch - which won't work in that area of PR. You could use the flying glitch to get there, but getting the height right would be next to impossible, and thats IF people could see you there in the first place after glitching.