crossheartoutfitters out of montana are a very reliable source for a mexico sheep hunt,you have to contact them by phone or through thier website for the cost as it changes from year to year they film your hunt for free and have a very nice ranch in sonora mexico they use as a base.Be very careful when doing a sheep hunt in mexico and only use a US guide,many people have been burned by booking a hunt with a Mexican outfitter and then never hearing from them again,loosing thier deposit.
If you're lucky enough to be on private land and can leave your stand up during the off season you can tie an old piece of cloth or something of the sort to your stand. I like to use an old camo bandana that I have. That way the deer get used to the movement and eventually don't bother even looking up when there is slight movement. This may just give you the time to draw your bow or raise your gun without being detected.