Viewed a 2007 Impreza 2.0 R Sport 5dr today. Mechanically sound but concerned about corrosion. Couple of small (3cm) bubbles on external bodywork above wheel arches, large patch under spare wheel, and advisables on last MOT (Nov 2023):
"Lower Integral body structure is corroded but structural rigidity is not significantly reduced (6.1.1 (c) (i))
Nearside Rear Upper Suspension component mounting prescribed area is corroded but not considered excessive (5.3.6 (a) (i))
Nearside Rear Upper Suspension component mounting prescribed area is corroded but not considered excessive (5.3.6 (a) (i))
Offside Rear Upper Suspension component mounting prescribed area is corroded but not considered excessive (5.3.6 (a) (i))
Rear Sub-frame corroded but not seriously weakened (5.3.3 (b)(i))"
What range could I expect to have to pay to repair - and how concerned should I be?