Sounds like a great combo! I have a 265 sitting under my work bench and have longed build it like yours and put it in something from the US. I'm getting a bit old for that work these days, but never say never.
That would be a cool project, these engines respond very well to a little work. Headers that will fit in a US body would probably be your biggest hurdle. Some had dual outlet manifolds from factory which would help but are still quite restrictive.
