Thanks Eric. If you have any insights I would be glad to hear of them.
"rarely post unless upset by the ref" ? Blimey, I'm surprised we don't hear from you more often
I can only echo what has been said above. Flying in a single-engined light aircraft over that expanse of water would be dodgy in summer let alone the middle of winter. I've been flown to Denmark myself in a six-seater single-engined piston aircraft before and that was with two pilots. One of them now owns his own small airline but after he had a nighttime forced landing over thirty years ago he vowed never to fly again at night or in poor weather or with just one engine.
My thoughts and condolences are with his family.