First off, welcome.
Crappie are not recommended unless you have 20+ acre pond. If you do, you will probably have alot of pond management to do. For some folks thats ok and take the risk, but not really what alot of people want to do.
I have used fenders fish farm (near sugarcreek,OH) with good luck. But with any fish supplier, you go there knowing what you want, and don't be talked into anything else outside of your plan. So start figuring out what you want now, so by summer/fall you have a solid plan. Read up here on all the different possibilties you have, and there are many. The more reading you do here, the better you will begin to understand how it all works together, or not. Others will help you too. Good thing is that you found this site before any stocking and hopefully avoided costly mistakes.
Stock fathead minnows as soon as you have water. Papershell Crayfish is another alternative and would like the rocks you have. I orderd mine by mail. You will probably need to wait till spring on the crayfish.
