Jeff, Grant has given your some good advice. I’d add Myron and Anne McKee are some of the nicest folks you will meet. They will treat you right.
For tactics, be prepared for big weighted nymphs and buggers in the few heavy runs–especially there by the falls around Myron’s place. There are some big fish that live around those runs. Short of that, fish small late fall dark caddis (#18-20) and perhaps small blue winged olives, nymphs and dries in the gentle riffles and tailouts into the pools with an upstream presentation. Most of the fish in Missouri spring creeks are not picky on patterns but are much more so on presentation.
When you come back downstream switch to a softhackle and swing down and across.
Be sure to check with Myron and Brian on conditions a few days before your trip.
Have fun. Would enjoy a trip report when you get back,
Scott