Rover 75 Con CDTi Auto Tourer - Voltage reg and brush or new Alternator ?

[yellownev]

Hi, My lovely 75 automatic had the ignominy of a 200 mile trip on the back of a recovery vehicle yesterday. 66k in ten years before me and I have done that again in three years trouble free until now.

Ready for the drive south and the battery light was on on the dash.

Did the volt check on the instrument panel and it was showing 11.3 volts

First breakdown guy arrived with no meter !! Pulled at a few cables and diagnosed a dead alternator.

I did an oil change with filter last week but was very careful to avoid oil on the alternator.

The battery is what was on the car when I brought it - no starting problems.

Coincidentally discount Rover MG spares emailed me with offers on replacement regulator and brushes for the alternator.

Question to the wise and all knowing is ... is it worth a punt on replacing the regulator and brushes or just get it shipped to someone (recommendations in the Chichester area) to put on a new Alternator and take my hard earned?

Any advice appreciated especially if there are meter tests I can do to check battery alternator regulator etc?

TIA Nev