So the motor drive arm (111) must hook onto 112 thru the left hand eyelet? I'm guessing that 117 is a threaded adjuster to get the arms synced. (I have only ever seen this connector link as a solid unit, with nylon bushing on each end. When the bushing wears out, the link is replaced)
Unfortunately I don't have a working solution for that. I have some large stuff that uses ball socket style connectors (not 'tie rod' style). The issue with mine is even if you swapped it out and added the pivot plate for a single blade arm, they are only made to provide a sweep of ~36".