For a diagram I used a 3 view JPEG which I then scaled using Excel to give me approximate dimensions in 1/600th. The model should be about 20.9mm Long with a wingspan of about 27.6mm. Neither my eye sight or hands can get that precision so this will definitely be "That Looks About Right".
I decided to use stryrene strip and rod to make the basic frame and then use some white metal parts cut from a spare Do-17 that is in the spares box. Give everything a good coat of CA glue to give it some rigidity and then use Militput to mould the fuselage shape.
Basic framework completed
Close up (sorry about the quality)
The CA glue will be flooded on this afternoon and I might get the first miliput on this evening.