He's keeping the same exterior cabin layout, but it's all new. I wish I had a photo of the actual boat, but the model shows it very well. Much of the cabin is stainless steel. Why? So that the decorative cast aluminium
uprights either side of the windows don't cause a corrosive electrolytic reaction.
What looks like a flat grey bar between Edwin and the model in the top photo is one of the actual castings (unfortunately you can't see the scroll work at one end of the bar). He casts the aluminium himself in his garden shed! He cuts the stainless steel himself, does all the welding himself ... everything!
It's not easy to see the signwriting on the cabin side of the model (I wonder who did that): it says
EDWIN W FASHAM
Founder & Engineer
There is much more that could be said about this project, but Edwin himself would be the best person to say it. I don't know if he has a website - a quick search hasn't come up with one.
Oh, forgot to say: he made the propeller himself.