Sorry, that was free to me!
I had the TD out of the garage today and an elderly neighbor I have never met stopped by for a chat as he and his wife are campers. He was quite smitten by the TD and was talking about the challenges he has had with his trailer and electric brakes etc for the car. They do enjoy the luxuries it has brought but he now has all this spare camping gear. We end our chat, and he comes back a few minutes later with his 431 he no longer uses or needs. The generator looks a bit tatty, but I had bought one earlier this week to try it on my 442a. So looks like I am the proud owner of a fairly decent 431.