Dell has it in one. the "legacy" works will take a fair amount of time to complete.
basketball arena , water polo arena etc needs to come down. the aquatics alterations. the creation/alteration of ther BMX and mountain bike zone at the velopark.
the way it was explained to me is that the park stops being a construction site late June early July 2012 until just after the paralympics finish then becomes a new construction site again while the legacy works are complete.
i too think that 8 months is a large underestimate of time to complete these works.