I also have fish and plants if you're willing to come west of Effingham to get them! I have 4 baby koi from last year that survived, not sure how much bigger your pond is and if you're looking for koi or goldfish, though. I have a goldfish pond and there are lots of fish in there, too. Problem is catching them this time of year! Just ask Sheetmetalman! LOL With the lilies growing, it's next to impossible to catch them during the day, but might be able to net a few at night with a flashlight.
I have lilies, water clover and water parsley, penny wart, and verigated cattails that are "blooming". If you're interested, private message me and we can go from there. Otherwise, I, too, have bought goldfish at Wal-Mart in Effingham. They tend to have some pretty nice fish, and usually not many dead ones like some other Wal-Marts I've been to. Local pet shops typically have better quality koi if they carry them, or find a local breeder. I got my first koi from a breeder in Indianapolis. Was a fun trip, as he had all the fish for sale in a pool set up for the day.