While I commend Kansas for it's effort, I am affraid that it is doomed to fail before it starts. I am sure there are laws on the books to hammer people who import any exotic without going through proper channels.
I am a Law Enforcement Officer, here in Texas, and can tell you that this is not unlike many other crimes.
When you have a hog problem, you are not going to get rid of it totally, but you can control it. Professional hunting is too costly, and won't get it done alone. Turn hunters loose, have them pay for the privilege to hunt them, and us that money to manage the herd, and step up law enforcement efforts. The more guns, and bows you haver taking them out, the more likely you will reach a managed level.
The darn things are such a big problem, that in area where they have become a pest, landowners beg people to shoot them. One might consider a law that says, you may allow hunting on your property for hogs, but you cannot profit from it beyond the hunters eradication of the hogs.
I still say bounties work, it is proven. This way, you have allowed those who wish to hunt, the opportunity. You would also have prevented those who would be incline to import them for a profit, from profiting, increased the monies for management/law enforcement, and therefore move in a positive direction toward the control of the beast.
Besides, the truth is, they have moved as far north as IL, and Indiana through natural progression. If they are found in a neighboring state, you will soon have them too. Best learn to get on those populations early, and lean on them hard. I must again refer to the example of the "Snake Head" a fish from South East Asia, do a google. This is serious business. I love hunting hogs, but I would not wish them on anyone who didn't already have them...........They can and do adversely affect deer and other game populations...IMO