Didn't know about the tramline- that is interesting and could have been so useful for an old friend of mine (sadly no longer with us).

These big projects have a habit of running over- so it could be 2, 3 years till then. But do consider other factors too. 1 is healthcare provision, and the other is unemployment payments. If you live in France, unemployement benefits, should you be unlucky to lose your job, as really not comparable.