Unit 40 has some tremendous bulls, but getting a tag is a problem. Idaho has a 10% cap on non-res tags in any controlled hunt. If less than 10 tags are issued in any one hunt, Non-residents can get no more than 1 tag.
Last years drawing results.
The any weapon early hunt (rut) has 5 tags, non-res did not get any tags, 60% success rate
The late hunt has 40 tags, 22% success rate, non-res gets 4 tags.
The cow hunt has 100 tags 8% success rate, only 4 non-res put in for this hunt last year and all got tags.
So If you put in for the early hunt as a group you will not be drawn, chock it up to experience.
If you are set on hunting Idaho there are some over the counter tags available to non-residents with moderate success rates of between 15 to 30%