John,
That sounds like you had an awesome LMB pond by Kansas standards once you started managing your bass population.
However, I suspect it would be extremely difficult for YP that hatched in your pond to make it past the crappie and BG predation, and then to grow to any significant size through the LMB and CC predation.
Is there any place on your property that you could build a small grow-out pond?
If you had such a pond, you could put in YP forage and then add YP that you pellet feed. When they are large enough, drain and seine the pond and transfer your YP to the main pond. Hold back a few breeding pairs of YP, and let them fill your grow-out pond again for the next cycle.
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