Thanks for all the replies guys, I went to look at a few P38's yesterday. The first one I went to look at was in a terrible state, bits of trim falling off.
We then drove further on to a 2001 Vouge SE 4.6 in gold. This was a very nice example but not without faults. I took it for a test drive (as did my old man who had come along for the ride). It went well but didn't stun me, the inside was a very nice place to be.
It looked like the heater was leaking on the drivers footwell, the engine was making that knackered idler pulley noise and there were a few spots of corrosion on the rear arch. The dealer was willing to take an offer if we did the work ourselves (no stranger to this approach).
We retired to my house for a bit of deliberation when I recieved a phone call regarding an avenue I'd all but given up on.
I have now bought a Range Rover, it's a bit of a project but fulfills a bit of a dream for me. More will be revealed when I can get some photos up
Thanks again for all your help.