I doubt that ETOPS applies to non-revenue, non-passenger ferry flights. I assume ETOPS is for the protection of the flying public, not for the protection of airliners. Believe it or not, even small single-engine Cessnas are flown all around the world in this manner. I know of a man who ferried his Cessna 150 from North American to Africa by filling his rear area with gas tanks. Then he just did what you and I did, as kids, to get across a creek without getting wet, just jump from stone to stone. He risked only his own life, so he had permission to do so.
Read about it at
In fact, small single-engine airplanes are also ferried to even the South Pacific in this manner, jumping from an appropriate island to another appropriate island systematically. Indeed there was an incident years back of a ferry pilot trying to get some guy's little putt-putt from Hawaii to New Zealand, I believe it was. When he lost his bearings and was running low on fuel, he was saved from certain ditching by an airliner captain who overheard the situation on radio and helped point the little guy in the right direction before he ran out of fuel and ended up like Amelia Earhart.
An optimist robs himself of the joy of being pleasantly surprised