I flew G-SARA in 2000-2002 when (I was told) it was owned by an accountant from Ferring who leased it to a school. In fact his name was on a plate in the cockpit. The story was that it was bought by a man for his wife called Sara and then she s*****d some other bloke and left him, so he left it for 15 years sitting in a field, rotting, and then the next owner restored it.
It flew quite well.
The avionics were duff; the DME indicated random values around 5nm (so it was plausible quite a lot of the time on a typical IAP), the VOR read all kinds of things (but showed no flags) but the ADF worked great. I did the ADF parts of the IMC Rating in it, with the instructor holding a £50 GPS from Millets as the "DME" and calling out the readings, and did the VOR/ILS parts in another PA28 which had a U/S ADF.
Great stuff ...