I also would recommend the Exmark stand on. Your closest dealer is probably Kansas Golf and Turf at 53rd and I35 just north of Wichita.
If your budget would allow, a 30hp compact tractor with a 3 pt aerator would also be a good choice. You could also use the same machine with other implements, and it would probably be especially handy for clearing snow as well.
Kansas Certified 3b Applicator
223 52" Grasshopper
48" MTGHS Walker EFI High Dump
32" Toro T-Bar
PJ 16' Trailer PJ 12' Trailer
2010 Kawasaki Brute Force 650 with Warn snow plow
2000 Ford F250 with aluminum dump bed