Actually, I make the struts and legs from brass tube because it is easy, rather than making them from styrene.
I recently had to make a set of cabane struts for a Fokker F1 (my mistake, I accidentally used the cabane struts as the legs), and I cut them out of sheet. That was the easy part - the hard part was profiling the edges on a fragile bit of plastic
The struts are squashed tube with a bit of wire up the middle. I then filed the end off at an angle. The legs are the same, soldered together
Richard