Given you are customizing for a scale set up, yours is practically unique. Hopefully Im wrong and someone might have done a similar setup and eventually chime here if they find this thread.
To save time, consider taking some measurements to find what you really need.
Those "turnbuckles" look alike that come in the kits are not counter threaded so you will need to pop a link to adjust.
They do have an upgraded set with counter thread
You could cut THESE
down if too long (non counter threaded) or try contacting Ralph at http://www.fblrotors.com
for high end titaniums.
Best of luck!
~~Enjoying the hobby one flight at a time~~