Hello-
Sorry for coming a little late to this thread, just saw it.
I think your idea of walleye as apex predator has merit. I've not had success getting YP to sustain themselves in my pond, which was disappointing-until I discovered that the dozen WE my fish guy gave me [without my knowledge at the time] are about 4# now, and looking at their gape, capable of eating some pretty good sized BG.
I would recommend trying to construct your pond with as much good WE habitat as possible, and specifically, structure that will give them the best chance to prey effectively on BG. I suspect you'll still have to do a lot of removal of BG by other means to keep numbers in check, at least for the first few years as your WE mature.
If you have YP and BG, your WE will likely preferentially prey on the YP, whereas you really need them to focus on the BG.
It is unlikely that you will have a self sustaining WE population, as reproduction in ponds is not common. Don't let that discourage you, the fingerlings are available pretty readily.
