I jettisoned the "kite sting/yarn" that was supplied with the kit. The black ropes were purchased from "Ropes of Scape", and I've learned to make small diameter ropes in the tan colour (0.15mm, 0.25mm and 0.5mm ropes) with acceptable results. I'm fortunate to have a 22 foot countertop in my kitchen, and I live alone - so no one around to scream about my kitchen use for the ropewalk. LOL!
I also purchased some medium brown ropes and thread from Ropes of Scale which I have plans to use for some of the stays. I'm not a "purist" when it comes to colour selection. To be honest, I am disappointed in the black shrouds. The fact that I served these is almost impossible to see because the black colour hides it so well. My next ship will not be using black rope at all. Live and learn.