If you wanted to come up with the most convuluted and complicated draw system, you would look no further than Montana. 704 is a special draw unit and also includes unit's 702 and 705. To get a tag there, you MUST first draw either an elk tag or a deer/elk combo tag. Then, after you get your tag, you can apply for the limited entry unit's. According to the MRS, your draw odds for 704 as a nonresident for 2010 was 58%. This year the odds might have been better since they jacked up the tag fees, not sure though. So to get a shot at a 704 tag, you must fork out $812 for the elk tag, or else $912 for the combo tag. Then after you have spent almost $1,000, you get the privelage of having your name in the drawing. If you don't get that limited draw tag, then you are stuck with your general tag to hunt during the general season. Then the following year, you will have 1 bonus point for the limited draw.
And for next year, I believe that Montana is going to go to a partial bonus point system where you can buy a bonus point for ONLY the general draw tag's. They didn't even sell all the tags this year though, so I'm not sure why you would buy a point. For the limited draw though, I believe that they will keep the same system and you cannot buy a bonus point. Basically, Montana is not a state where you can build points and go hunt there in 5 years. You must draw your tag and then apply for limited entry area's. If you don't get your limited entry area, you need to have a plan for where you are going to hunt in the general season.
As far as access, animals, etc., I'm not sure. Hopefully somebody else has that info.