Like pumad said, you could have easily just taken a blank level, make it pk, add 2 boxes, drag a gang into their respective boxes on each side, then when ready destroy the boxes with OLE. Hell, could have even used NPC editor for that and just use 2 large images.
Not trying to bash on you guys or anything honestly x-x I just don't see why you would need to postpone/cancel the event people were waiting/excited for when there are other alternatives.
Did you guys at least compensate the players for their wasted time? I am sure some people stayed up very late just to be told that the tourny wasn't happening.