I've been hunting Sheep in there. I have seen some good bucks but it was still early august. Bucks seem to be in that 11,000-12,000 ft elevation.
The bucks I have seen are in that 170-180 class but I've seen quite a few of them. I think it's a matter of time before a real good buck shows himself.
The Sangres are rough country, If your Dad is older he might have a hard time getting around in 86/82, I have not spent time in 861. There is a good buck in Rito Alto creek which you can access from the Hermit Peak road on the East side of the range. I've seen him 3 times and he will probably top out in that 185 range.
Some good bucks in Sand Creek too but not as many deer on the east side as on the west.
Lots of country to look over so just get high and hunt.
If you can hike around of horseback and cover ground you will find a good buck. There are lots of trailheads but the basins at the end of those are long and high back in there.
Good luck.