For insurance purpose, lots of ferry companies require their pilots to have completed an.... Atlantic crossing prior to be put on the payroll (well, contract that is).
Best way to do that is, as always in aviation, to join a ferry friend (Not a furry one

) during a crossing. That would be counted towards your experience and when asked by the insurance how many crossing have you completed, you can then say: 1
Much better than nothing for your credit rating.
EchinodermusMaximus
Most aircrafts crossing the Atlantic will be N reg, hence an FAA ticket being often preferable.