Many thanks for both your replies.

I'll be using the AG35 and AG36 from the Mark Drela stable. I'm new to the world of airfoils which appears to be a minefield and looking at the accuracy of computer plotted airfoils thought this accuracy would have be maintained throughout finishing with CNC cutting.
I think I will just take my time in hand making accurate templates.
Looks like balsa bashing isn't a thing of the past after all !

Dickeybird - I've tried to reproduce a picture here of my brand new Cox 051 number 200 purchased December 1974. I normally place it over our fireplace which I think is an equivalent work of art compared to my wife's ceramic figures - its a bone of contention but there it stays !!
DavidO.