pistonheads is always a good spot to try your luck first, seeing as it's free.
Most cars on there seem to be overpriced!
Miles don't really mean a right lot in my opinion. They do when it's on 200k, but not the other way round.
My facelift 51 reg with 94k I thought would have been worth less than £7k, and I know which I'd prefer.
Let us know what happens with the sale though, I'd like to know what it fetches in the end.