Right importing a bike to France means you have to complete the following:
Have the V5 and apply for registration of the vehicle in France.
It will have to undergo an approval type inspection (check the headlight dips the right way...)
The main problems you will have is that bikes in France are restricted to 100BHP (so you will have to restrict the bike for it to pass this test), the headlight dip is the only other issue.
You may have to pay import taxes based on the mileage of the vehicle.
The test used to be done by a government department named the 'mines', they have now changed DRIRE.
http://www.drire.gouv.fr/national/vehicules/recep_importes.htm
I imagine that if you live in France you understand a bit of the linguo.(if you are stuck PM me)
You need to contact the local prefecture.
There is a very good french aprilia website
www.aprilia-v60.com
Once you factor all of this in I'm not sure you will find the bike to be much cheaper.
Hope this helps.
Pete