1987 Audi 4000 CS Quattro Runs Great Restoration Project or Daily Driver

1987 Audi 4000 Quattro Description:

This is a fairly rare example of a 4000 CS Quattro. Low rust, runs good, interior is in great condition. Original rims included. 5 Speed manual transmission shifts perfectly. This can be a great restoration candidate or a rally car. Here are the issues I know of.
Passenger window rolls down about one inch and then clunks, so the power switch works but something is blocking it.Rear drivers side external door handle is loose and won't open from the outside.Fuel gauge doesn't workVibrates at 60 MPH (could be tires)Odometer and Tripometer do not work so even though mileage is exempt I am not sure of actual mileageDent in the rear drivers side quarter panelA/C doesn't blow cold