If you don’t get any other leads on this, Vic, perhaps the venue can accommodate the group with some impacted by ADA needs.
This can be achieved not just through those in wheelchairs, but could be vulnerability due to crowds bumping them or easier access due to walking problems. It’s subjective to the venue and PTB, but this can be a relatively low bar to chin if expressed thoughtfully. Certainly sounds appropriate from what you’ve shared.
And obviously should not cost any extra.
Just an idea.
DD