That "grab bag" would give me some pause, but then again, maybe those varying species would end up in your pond anyways (assuming that supplier is very local to your pond). Note that fish that live in streams/creeks don't always do as well in ponds. Maybe you could hand-sort any 'bad' fish out of the grab bag.
I would want to get some kind of forage fish going for 6 months to a year before the SMB or Walleye stocking, if it was at all possible.
Using fish feed will expand your potential options.
