Day 1 - Buy the rear poly bushes...
Day 1 evening - take off the subframe... disassemble it...
Day 2 morning - drop the sub frame of at GT finishers in Plym...
Day 2 afternoon and evening - Swap the front cross member and tension rods
Day 3 morning - Check the rust issues
Day 3 afternoon - Pick up the sub frame
Day 3 evening - Reassemble the frame with new bushes, arms and rear brakes. Put on car with new exhaust.
Day 4 morning - Take to get alignment, then take it to get welding done from the rust check.
Day 4 onwards - spend the money saved on buying the SW SXOC lot dinner in the pub
Simples