I have discovered slop in one of the pivot arm linkages on the rod that connects the two throttle bodies on my V7c.

The rod #5 has two end linkages, not available separately, and one of mine has almost 1/8" of play in the pivot. The other side pivot is very good (no play at all). Rod Part Number is GU32530509.
Using my digital vacuum balancer, it has gotten harder to get consistent test results and the last tuneup session made the vibration a bit worse not better. I think the sloppiness in the linkage is making it hard to have my throttle units synced properly and I am going to change the worn pivot and retune the bike again.
Anyone have any info on a suitable replacement? The rod assembly, with the pivots, is very expensive. I have seen several sizes of similar pivots available - anyone know what size fits best?
If I have to, I can fabricate a new rod out of stainless and even do left and right hand threads on the ends if needed.
Do you think a single body and ecu be retrofitted to the two body engine? (without going into major alterations?)