Twist,
Pop me e-mail address and I will help you out as much as possible.
Ferried a 332 from Stavanger (NO) to St. John's (CAN) this past summer, we have a whole package here that may help. Designed for a heavy twin legs mind you but still info that will be relevant for any trip.
I would look twice, no actually would not go over the top at all unless you had something fully IFR Twin engine and maybe de-iced............
good luck
AESIR......it spelled NEWFOUNDLAND by'........LOL