Hi
Last year we did that crossing and stayed at a site near Pegasus Bridge, less than 10 mins from the ferry. Would use again, we faxed the booking to the site and the lady owner stayed in the office until we arrived. There's a few details on Eurocampings website and I used google maps to work out how to get to it.
Campsite Les Capucines
route de la Côte Fleurie
14860 Ranville
France