I own a rhd Defender in the Montaigne Noir, the rhd aspect is no problem at all for me. Parts for land rovers in France are very expensive, propshafts and universal joints tend to go often, so get them sent over from an independent dealer in the uk (though you'll pay for shipping) and any half decent French mechanic can replace them easily. Better still find out what might need changing over the next year or so and bring spares over from the uk. Go and get your new vehicle checked by an independent garage in the uk prior to leaving for France and buy a Haynes guide for the vehicle, you'll find a lot of things are easily fixed by yourself. There are loads of Landies around our parts, I think I'm gonna set myself up as a parts dealer 'cos the prices are outrageous!! Unless you live up a mountain and need towing power/space for diy and such I wouldn't bother with a 4x4, they can be expensive to fix, espescially certain parts for toyota landcruisers (so I'm told).