Thanks for the kind comments.
It's been a surprisingly un-fiddly kit for a first time build, (though it's taking so long I've done a couple in between).
There were a few niggles such as the cab window frames but nothing too terrible.
I think DJH have been influenced by this 'beginner Pacific' idea and have produced a simplified kit of a Peppercorn A2
http://www.djhmodelloco.co.uk/prodpage.asp?productid=3243