Lesley
I don't think finding the way is a problem, more the traffic situation and the necessity to swap lanes frequently. It depends whether you are happy to tow in those conditions.
I have avoided Paris for quite a few years now and we usually take the route via Rouen, Evreux, Dreux, Chartres and Orleans. Most of it is good roads, it doesn't take much longer than the Paris route, it avoids many of the tolls and is more pleasant and relaxing in my opinion. Having said that we did get held up in heavy traffic approaching Dreux last month, but we may have been unlucky with our timing.