I plan multiple hunts each year and I put 5 days on each, and add a weekend if possible. I've found that to be enough time to usually get things done or learn the area enough to know what to expect. I would only do shorter if I had been there before and had been successful. If you are travelling out here, don't short change yourself, you owe it to the animal and experience to give it an honest effort.
"There are no words that can tell the hidden spirit of the wilderness, that can reveal its mystery, its melancholy, and its charm." ~TR
"He was a mighty hunter before the Lord." ~Genesis 10:9