Delmag,
Last year 5 points was the max so 54% of those drew. This year the max is 6. COLO has 5 so he'll be in the random draw. Odds in the special random draw are about 4% for unit 7.
COLO, IMO $500 is not going to get you on a worthwhile piece of private in unit 7. Last I heard it was $2,000 +. 5 points will get you a tag anywhere in the bighorns. Units 45,38, and 39 are probably best. If you aren't afraid to put in some time and burn a little boot leather you'll have a real good hunt there. GOOD LUCK. Chip