I think that's what has kept me away from them Jim, it sure would be nice to see a modern day beefier replacement for the D32 boiler issues. looking forward to the progress of this build thread.
I would advise any potential D32 buyer to fully investigate their purchase before paying over the money. I've researched them after taking mine apart and seeing the green rot all over the boiler where Wilesco had soldered them up and it looks like the flux was eventually corrosive on the thin boiler wall. It's such a common occurrence unfortunately with them.
I run mine now off another boiler, so this thread is very interesting for me to follow.