I have never hunted 18, but looking at last years stats, looks like it will be tought to draw. Only 40 tags and over 200 residents applying and no NR tags issued. Don't know how much you know about eastern Colorado, but mostly private. If you are able to get here in early summer and travel around looking, probably can get permission from some of the ranches. Usually a lot harder once the season starts.
My wife & I will be heading to the Big Island next year for a month to celebrate our 50th wedding anniversary. Never been there before and looking forward to it.