1977 1850HL automatic with 43 000 miles on the clock which I don't think is bad going.

The body is really straight with only four things needing attention, a dent in the front wing next to the headlights, a similar dent in the boot lid where the 1850HL badge goes, some signs of a repair on the driver’s side rear door and some spidering in the paint all over the car which I am happy to leave as is. I can't find any rust.
The car has lived on the Isle of Man all it's life which probably helped it's condition as they warmer winters and don't grit the roads. The seller ferried her over and I picked her up from Preston yesterday after getting the coach up from London and drove back to London for the night before making it back to Sussex this morning. The only faults I came across driving back was an indicator stalk that is loose and falls out sometimes and a fault with the no charge light.
I'm not sure what is causing the no charge problem, the light started flickering when I put the side lights on and came on full with full beams although the voltage didn't fall below 13.4 votls (checked with a multi meter). The fan belt was very slack so I sorted that but still the problem remained. It gets dimmer at idle but the belt isn't slipping. Does anyone have any ideas?

The idiot standing next to it is me and it's my gran in the car - she didn't want to get out while it was being photographed because it was too cold, bless her!
Tomorrow I'm going to give her a really good clean and a tune up before going back to uni. I'll get her through her first MOT in the summer when my exams are over and sort out all the DVLA registration documents then too. I just hope I'm going to be able to get insured in the summer, my old one cost £350 with me as a named driver but I suspect those days may well be over...
James