Hi,
This is the Combrig 1/700 kit with some minor modifications.
For the rigging ,I used paintbrush bristles for the thicker cables (i.e. the funnel stays) and Uni-Caenis fly-tying line for the thin cables.
Make sure you select a good quality paintbrush with fine, uniform bristles.
The Uni-Caenis thread is finer than human hair and hard to see, but glues very easily with superglue and is slightly stretchy and pulls straight with minimal tension.
I bought from here:
J Stockard Fly fishingMin