Audi 80 – overhauling

Hi All,

I have a 1.6l Audi80 TD, 1985 model.
The car has manual steering and I would like to know if and how I can get it converted to Power steering.
What all parts/components are required to make the change without having to do any major (structural) changes under the hood?

Also, the car requires some work in terms of clutch replacement, brake pads, drive shaft bushes etc.
Please advise the best place in Bangalore (or outside) to get these parts and where to get the work done on the car.