Well, it wasn't from Stapleford but it was from Denham, only just down the road relatively speaking.
I did Land's End (St. Just) being as far as you can go in England in that direction. I think it was 470-odd NM. Well do-able in a day and great fun. Via Bodmin on the way down and Plymouth Rowborough and Dunkeswell on the way back. All in a 100-horse Rallye!
Cheers,
TheOddOne