Came across this eBay ad (not mine) which looks like someone else has thought this through and come up with a way to mount that original pivot and rods to the side of the 292 (see pictures in ad).
292 carb linkage bracketThe fabricated plate looks less than refined, but evidently does the job.
The other thing I would mention is that pivot ball shown on the carb will probably need to be removed to allow that hole to be used for the rod from bellcrank up to throttle arm. Also will require some experimentation with bends of the vertical arm so movement of throttle arm is pushing out (towards the fender) from what I can determine from the pictures.
Let us know what you figure out.
