Adam, I get your concern about possibly overfishing your bass. In my experience, it took me 3 years to knock my bass population down in a 1/4 acre pond. I live on the pond and fished it a few times a week with ultralight tackle specifically to reduce the LMB population.
In the few remaining weeks you have before freeze up, I think you could try to hammer the bass with a variety of baits and lures. I think it unlikely that you would destroy your opportunity for catchable bass next summer this way. They learn from watching others get caught and pulled from the water. This makes them hesitant to bite for a few days. Soon enough you'll have ice to contend with.
If you end up with 20, 50, 75 LMB overwintering, you'll likely have better quality fishing next year than if you overwinter 200, 500, or 750.
I am certainly not an expert, but if what you say is true, that is, your forage is already depleted, then each bass you remove this fall will potentially help any remaining fish be able to grow to a more interesting size.
In any event, keep us posted. This sounds like a fascinating way to control an unwanted or unplanned population of predators.
