The lazy starter has been there from the day I got it. The starting sounded worse than it was, it never failed to start at all and the starter seemed to spin over better with increased use of the car. The wiring check re: earths could well be a good start and wouldn't hurt anyway. Squeaky brakes could well respond to a good clean of the calipers and so on, due to circumstances the Golf would spend fair amounts of time parked up, am sure a good tidy up would reap benefits.
Gear issue. Maybe a change of gear box oil would be a good place to start, not sure when it was done but wasn't done on my watch. It was on the hopeful list however.
Radio. Umm, not sure. I think I used a proper connector set up but the radio is not much cop and was one I had lurking in the garage. I will be taking the DAB one out of the Volvo to fit to the Rover, so I will post the Rover one back to you early next week hopefully.
I think the only bit of the interior that I didn't tackle was vacuuming the carpet and finishing off the boot area carpet properly, especially the rear 1/4 panel trim and the rear seat belts. They will need a good deep clean. The dash and front seats should be in pretty good order cleanwise.
Bonnet maybe repainting the bonnet wouldn't be that pricey, a replacement is not expensive either. Shame about the lacquer as the bonnet is in virtually mint condition otherwise.