I’m sure I am not the only one thinking that David has done the right thing, not because of the electrics but because of his mobility problems. Boats are not the easiest of things to get on and off and with a little dog could become a real difficulty. Think about mooring up on a windy day. Once legs become painful and walking is difficult, even a small step can seem like a mountain. We are also talking 14 months on so David has no idea what his situation might be then. He might lose even more money leaving it later to cancel.
David, it is very sad that you are not able to follow your dream. Have you thought about a riverside cottage where you could still watch the world go by? If things were good at the time, you could hire a day boat. Whatever you do, I hope you do manage to enjoy the Broads at some point.