let us know how you get on.
As an aside and to save having to drill the rockers (as directed to do so), there is a rather simple way around this issue........................
All you need is two longer bolts, 2 pivot balls to suit and two longer turnbuckles.
In short, remove the bolt that goes through the rocker where the shock end is mounted to the rocker, replacing the bolt with a longer one that ALSO has the pivot ball on it. next, connect the ball end to the newly positioned pivot ball and all you then have to do is fit the longer turnbuckle and no more fears about breaking rockers, especially since the force is directed from/to the point at which the shock mounts to the rocker.
Hope this helps, as its a fix/trick i used on my Revo 2.5 that worked well until i removed the sway bars altogether in favour of a different setup utilising two shocks each side at the rear end (still testing this dual shock MOD).
As i have mention the drilling of the rockers, i would recommend that you also read
THIS thread (an old thread that i have added the above content to also).