Your turnbuckle looks totally nice, don't get me wrong, they are beautifully manufactured.
But, as aliluke wrote, the Camel don't use them.
Turnbuckles are for ropes, but the Sopwith aircrafts, the later ones, uses flatened streamlined steel bars called "RAF aerodynamic wires" as most british aircrafts of that time.
WNW tells in 1/32 scale to use 0,1x0,3mm, so in your scale the bars should be around 0,2x0,6mm.
There are tables for every aircraft, here a example:
An the end the steel bars are round with thread and mounted into terminals, which looks like this:
I replicated those in 1/48 (in your scale and the turnbuckles you show, it should be a easy task for you), see my Bristol Fighter thread:
https://forum.ww1aircraftmodels.com/index.php?topic=9378In 1/32 you can find a product here, may be it helps to get the idea, the review and links are also nice:
http://www.radubstore.com/index.php?main_page=product_info&cPath=2_68&products_id=328So, a lot of information, but I wanted to avoid to spend so much effort into a wrong solution.
Cheers,
Frank
