chuck did you manage to find the plans on the above link , i gave up after an hour or so .made harder by not having seen what sandy c's boiler looks like .
Go to Documents and downloads then Dewal 1 near the bottom of the page you will see the boilersGoogle will translate if needed
You should also have recieved a pm with Sandys email details as requested by Sandy
Sorry thats all I can do
cheers