Far North at Wick can rent you dry suits and life rafts.
Nominally, you are expected to plan a 3 hour fuel reserve for single engine. I believe that is unenforced and may be exempted.
BIEG is a good choice for port of entry. No handling/landing charges and a friendly reception.
If the weather cooperates, Akureyri and Isafjordur are fun places to visit and I'm sure many others too.
No HF radio requirement if you stay out of the OCA and VHF coverage is good over most of the route.
If you can't get through with a position report, just hail an airliner on 121.5, switch to 123.45 and ask them to relay your report.
Be prepared to pay double the usual price (at least) for everything!