Well figuring in the cost of travel, food, license, processing, equipment that you will buy on a trip to Colorado

TRAVEL:
gas for 3800 miles = $280 - $400
hotel for two nights = $75 - $150
food = $120
oil change = $20

HUNTING COSTS:
license = $250 for cow $480 for bull each person
Hotel for two nights (1 when you get here & 1 when you are done) $100 - $300
food for 10 days = $200 - $500
equipment = few bucks to hundreds depending on what you have.
peocessing = $200
taxedermy = $500

Youy can add or subtract to this as you see fit but you are looking at a bare bones minimum of about $2000. That's if you already have most of the equipment that you need.