I have a 1995 Rover Metro GTA 1.4L 5dr hatchback which I want to sell. Mileage 37,284. I have full ownership and service history. The car belonged to my mother-in law from 1996 until 2015 when she gave it to us. It has been garaged for virtually all of its life and has a current MoT. It is a good little car and in generally good condition except that both rear wheel arches have rust. One is quite bad though not bad enough to fail the MoT and there is a rust hole of about 50p piece-sized on the inside of the front passenger side door frame. The body paintwork has some faded patches. I have looked up some similar cars online to get some idea of what to sell it for but they vary a lot and I don't know how much to discount for the rust? Can you advise?