South dakota has a limited number of Non-resident licenses. And you have to apply for the licenses by a certain date (i think it was july 15th). If all of the licenses for the different zones don't get issued. they will hold a second drawing. But i think that normally by this time all non-resident licenses have been issued. If you want to be sure though, i would contact the guide and they would be able to contact the fish and wild life service to see if there were any licenses left in their zone.
"Alcohol..... the cause and AND solution to all of lifes problems" ......... Homer Simpson