It's humid in KS, too. I'd want to make sure that the environment the bulls were raised in was as similar as reasonably possible to the environment you're going to run them in ... so, getting a bull out of western or central KS is different than far eastern KS. Getting a bull out of a creep-feed situation will be quite different if you're a grass-only set up (or vice-versa). Etc.
Gus DVauction.com has that sale online also the quail creek and mound creek sales, I haven't used it to purchase anything yet but if you bought something then it may be worth the drive to you?