Lovely model TSR2, ionagh
What's the powerplant - is it gas-turbine powered?
I believe the main gears pivoted 180degrees around the 'ankle' joint during retraction - similar to the Russian Tupolev designs, but forward retracting instead of to the rear. The Illyushin 18 turboprop airliner retracts/pivots forward in this manner.
The TSR2 did indeed seem to have quite complicated retraction dynamics, but spare a thought for another supersonic prototype(s) that never made it: The XB-70 Valkyrie. The 4-wheel bogies had to pivot 90 degrees 'sidways', then 90 degrees 'up' before the gear legs swang back into the bays with the bogie effectively lying on it's side in the bay.