Many thanks for the replies chaps

You do nothing by halves James.
Well you know, I've got a few spare cubic feet of storage space left that needed filling

what is the big chimney for?
Smoke...

No idea to be honest but it looks good and won't be stuck in so something else can go in its place

Is that design going to break down into a number of possible kits when you are done?
Quite possibly although breaking it down isn't as easy as that due to the drawings used. We'll see

Possibly more to follow this week but I'm to my folks for a week or so... I have been tempted to take it with me...

cheers
James