Lego is useful stuff, I also have a lego right angled template I use to support and align foam board when making buildings and I have also used it to form retaining form when making a mould for casting plaster of paris.
You've also reminded me that a Duxford visit is overdue, it's only in the next county to me, and I feel a 1/32 Dauntless coming on when I've finished my Zero (which is gonna take some time!).
OK, after a long break, I am now calling this finished,
The delay was partly due to my local model shop closing suddenly before Christmas, just as I needed a couple of bits to finish off, including a satin varnish; and partly work. I will put some more pictures in a completed build thread.