Hi Leslie!
Of course I recommend you come in France (especially in Marseille and for the same reasons ladydi asked you to forget it!

).
You can use the website of fnac to test the seats before buying them and you don't need to enter your email. Here is the link :
http://www.fnacspectacles.com/recherche ... 9086011139
First you choose the venue and click "Réservez vos places", then "Réservez vos places" once again and you can choose your category (the seating plan to check the categories is available by clicking on "Voir le plan de la salle") and you also have to choose your mean of payment even if you just want to see the place and click "Poursuivre". And then the website proposes you a seat and shows its location in the seating plan. If you're not satisfied with the seat, click "Annuler" and try again later!
I hope this will help, don't hesitate if you have questions!
Marine