Hey Gibo,
a Steve Richie Classic!
Yep if your auger and shooter are working still your in good shape.
Can’t help u with the balls sorry, shouldn’t be too hard to find tho try industrial suppliers.
Yes the PF plastic overlay do have a curve in them , and seems to help clear the balls.
Did find some info on AA years ago, but not definitive as to this being by design, or how they go from years of sitting and only being anchored around the perimeter
Cheers Peter