Ferry flying experience as a PPL?
A few obstacles really here. The majority of aircraft doing transatlantic flights by ferry pilots are single pistons because in truth, this is the biggest risk area. The ferry pilot is predominantly flying a 4 seater piston single. He is carrying a significant amount of equipment, survival gear, liferaft, extreme clothing etc not to mention fuel. If the aircraft is tanked, it will be operating up to 30% over gross max weight and to add a 180lb co pilot along with his baggage would cost a trade in the amount of fuel carried. Also the ferry pilot is delivering an aircraft for the aircraft owner so there could be issues there. How would the ferry pilot feel about sharing a toilet with a stranger in the close confines of a cockpit and I am sure there would be many more so all in all I really dont think there would be too many ferry pilots that would welcome what you suggest. Sorry if I appear to rain on your parade.