Only a couple thoughts from my experience...
Leaving all the black topsoil in the pond bottom does two things...add nutrients (maybe good where you are) and wastes a really valuable resource.
We removed most of the black soil from our second pond area and used it on several areas where erosion had taken much of the place to clay. After that, I realized just how much we'd have gotten from the first pond. Maybe 60% was removed anyway, just in the course of building, but I REALLY wish I could have used the other.
I've got quite a pile as a dam for the "crawdad" hole, down east, but it's nearly a quarter mile from where I need it...2 ton dump trailer and the tractor gets it for me, but it would have been much handier to have stockpiled some closer to the house.
Just some thoughts....doesn't take much time (translated = $$$) to move quite a bit while the dozer's on site.
In a lifetime, the average driver will honk 15,250 times. My wife figures I'm due to die any day now...