There is a place called Benett Springs. It is relatively close to KC.
At that time of year I figure it shouldnt be horribly crowded.
I dont know for sure , I have a high degree of snobbishness to the area and avoid it BUT the folkes that like it think its the cats meow.
Check "Ozark Anglers.com" and that may give you a better idea.
There are a bunch of folkes here that are much more knowledgable about this than me.
Best wishes
p.s thats for trout (bennet sps.)! As for fly fishing, too many places to count.A laundry list should be following this reply . There are a LOT of good spots within two hours.
p.