Missouri just posted their bird count and of course it is worse than last year. and last year was a all time low. we are gettin' worse every year. sorry to vent but all the mo conv people talk about is how they are doing all they can for upland birds and their survey count are lower every year. they already have their excuses, a bad snowy winter, heavy spring rains , a dought etc, don't they realize they had thses back in the 50's, 60's, 70's, 80's, i am not talking about private ground i am only talking about conv areas and their so called quail emphis areas they cain't even get a excellant cout on these, yet back in the 80's they held a lot of birds. sorry to vent on your question but i just read the report.
you will be near some good conv areas
http://mdc4.mdc.mo.gov/applications/moatlas/AreaList.aspx?txtUserID=guest&txtAreaNm=s
you will probaby drive right past me, i live in warrenton I70, 193mm, when you
get past Wentzville, 207mm, DO NOT SPEED(70) there is a speed trap in the little town of forrestel, do not go over 70 until you get to Wright city, 198mm
I hunt in the middle of the state and ncentral and ne part, to far of a day drive to where you will be
I never been to Biby ranch, from what i hear it will get a lot of pressure from kc area
but Tarkio ca and seat are rated good for quail, click on the areas and you will get the info and also maps, you are going to a good area.
also if you have time bet 8-5 stop at cranes general store 161 mm, it is worth the visit
hopefully some others in this area will reply, as you can see from the post not much goes on in missouri
good luck