As you can see from the responses, you need a CPL to get paid for ferrying.
Don't rule out the ferrying though. Your best bet is to get in with some ferry pilots and they may take you along with them. Forget about the transatlantic stuff, it's not for the faint-hearted. I've done it too and I wouldn't consider taking an inexperienced pilot over to Greenland and Canada.
A lot of ferrying is around Europe (and mainly over land) so try and cadge a lift.