Wow, it Ian a long way to drive but quite a fun ride.
I have done it twice, well once fully completed and once got to Lewes before rain stopped play. So first of all try and go for a good weekend weather wise.
Tried 50/50 first time, stayed over in Amberley. First time I tried was in a group and good fun for the beers in the evening. The Second time I tried to do 60/40, stayed on my own cheaply in a pub. It did work but I was lucky enough to meet up with with someone from here to help motivate me the next morning. It was my second attempt that I completed.
There is a decent map that is worth getting and if you can get a gpx file, It is helpful to keep you on track. There are some tricky turns where you can miss the route easily.
Pack light and don’t bother with a full susser, unless it is light.