As far as I remember, Toulon is near and friendly, I think Cannes might be an option too. Been a while.
Seeing as you are in Morecambe and in a Bonanza I would suggest Rouen, about half way, GA friendly, long runway, fuel, customs (Check if pre notification required) and a good restaurant in the terminal if you get there at lunch.
When I fly VFR in Europe (now IR Rated) I tend to keep airports near my route, that way I can easily divert to an airfield I have just passed if the weather clamps in.
Off the top of my head, maybe Rouen - Chartres - Limoges - Nimes - Toulon.
If the route is a bit dog leg I apologise, I am writing this from memory, no map or info here in Indo.
Have fun.
FB