You didn't list Kubota as a choice, but if you're interested in the least in one --

Kahoka, MO  Far northeast corner of MO, almost IA, almost IL.  Dealer is Wiss & Wiss.  Often have a used one listed in shopper/trader paper.   

They've done some work for me on our Kubota and seem to be very knowledgeable and competent.  Not sure but think they've been Kubota dealers for a long time.  Seem to keep a good parts supply on hand as well.  Shop rate for labor is the lowest I found this year as well.