While one can compress "space," I'm not sure compressing time is an option without an extremely strong gravity field, but that might take up the same amount of room as an A1200. So what we need to recommend is a way to Expand the Space in his flat to accommodate not just the A1200, but the PSU, mouse and Joystick.
Now the quickest way to expand a space is through rapidly expanding gases; I'm thinking a half to full stick of a substance based on nitroglycerin, using diatomaceous earth as a temporary matrix might be the first order of the day!