Tuttle Creek is a few hours from you, it has good wheeling and I think camping is allowed. It is located in Randolph. KS Rocks is by Fort Scott, KS but I am thinking it is like 3 or more hours from you...a bity more then a "quick" drive to do some wheelin. there are a few guys in the MWC from the Wichita area, hopefully some might chime in on this.
When I got out of college, I worked about 3 hours west of Wichita in a little town called Ulysses...it sucked out there for wheelin...too flat!