Expresshunt has given you some very sage advice. If you do plan to do this hunt DIY then do your homework. It, an undertaking such as this, should not be taken lightly. The reality can be some terrible weather patterns at any time of the year and depending on which side of the range you decide to hunt, you should at least have better than the basic understanding of Alpine hunting, hunting at altitude, streamcraft, first aid and i'm no doubt forgetting many more. The terrain, and weather, on the West Coast ballot blocks can be brutal, particularly during the peak rut period. It comes and goes in systems that you sometimes avoid and other times you don't. Roll with the punches. Don't climb beyond your ability, don't skimp on your equipment, get super fit, learn stream-craft/river crossing, hire a sat phone/mountain radio for your hunt. If you do your homework and get properly prepared and get super fit you stand at least of a very good chance at minimum of a truly unique and proper alpine adventure hunt. Fresh Tahr back-steak grilling direct on a struggling camp-fire in some remote West Coast block in Autumn or Winter is truly indulgent and worthy of the effort, as are the older Trophy bulls.