Your best bet might be to look up a guide on Santee which consists of Lake Moultrie and Lake Marion. Lake Moultrie would be a little closer probably a couple of hours away. The Spring Crappie fishing will be winding down but a guide will still be on top of them. The guide will supply all the equipment, bait, etc. You can look up and find a good guide on the Internet.
Good luck, have fun, and let us know how your adventure turns out.