Are we crazy or what?

If you two are really into each other & it sounds like you are, well I don't see age as a problem. The distance seems a bit much, but as long as you have faith & trust in each other & can see each other often , then go for it. It has the same chance as any other relationship probably more so than where the couple see each other everyday, & get to feeling like they need space.. You have that already so that is plus on your part*