Ideally you would have an adjustable LCA with a spindle that corrects geometry, so you can fine tune it with the LCA and the knuckles could adjust like 30mms or so.
A way to bypass the whole tension rod issue is to get rid of the 2 prong bolt on method and make a LCA with a bracket to allow a double heim joint tension rod. So you can weld it on however higher or lower depending on what you do with the inner LCA pick up point.
Something similar to this:
A company called SP-Tec in Japan makes these: