Golux, the good news is that I managed to convince the blightymen that I was a Bulgarian and will not be thrown out of my yacht club. BTW, the 300 quid was for the benefit of my insurance wallah. Who would pay 300 for a dinghy, I ask you? For that kind of money, I would expect an outboard.
Anyway, there was no problem and I could have made it. BTW, that map was downtown Southampton, New York. I was working off a back bearing when I noticed a magnetic screwdriver next to my compass.