I'm back! No issues whatsoever, except I backed into a stone plant pot that wasn't there and scratched the rear bumper. Not deep at all but one to fret about. I'll never sell this car so it's no issue re resale and can hardly see it but I know it's there now. Did about 1300 miles at 20.6 mpg - not bad as a fair bit was over a ton....
Never saw a police car or even a Gendarme, well one police car on opposite carriageway, that was it. French drivers speed a lot, I was never the fastest. Sat Nav was talking bollox when in rural Normandy, took me down just about every D road, single lane, corn fields, mental. Set off 6:00am this morning French time, dumped myself up on the Eurotunnnel, dropped the Mrs off at Beauvais (she's in Dublin for work) - hate that airport, then A16 to Calais, easy peasy. Crossing, easy, drive Folkestone to about Northampton terrible, after that all good, got here 14:15 UK time.
Driving on correct side of car on wrong side of road for first time, a million times easier than I thought. Only forgot three times, one at a weird junction (no risk to life), once in a village with a shît road (no risk to life) and once this morning, tired, another weird junction, (some risk to life had it not been so early!).
Enjoyed it!
Having a strong French beer now, early to bed!
Thanks for all the responses about, helped enormously...