Well with all due respect, good luck.
I can't recall seeing many (if any really) part #s for the various Aqua models and the hardware used. We run across suppliers from time to time (like Taylor or Taco for instance) but even if we had old #s they would be just that. Out of date or obsolete parts, no longer manufactured. Most everything we replace is (but not always) custom made.
Could you measure the starboard side and see if they can create the part or have a local glass shop re-create it?
Just thinking out loud.
Good luck.