in the end, I took 2.5 hours (transforming without instructions and while talking to a buddy on FB).
lots of fiddly bits and parts. It's fun, but my fingers are aching now...
http://2.bp.blogspot.com/-da6xr8T9ds..._8389+copy.JPG
http://4.bp.blogspot.com/-RkpN6dyzAw..._8395+copy.JPG
http://1.bp.blogspot.com/-76v2wbu_Jf..._8403+copy.JPG
Lots more photos here.