Leave with penty of time on your hands,rest would be good for a long days drive and then a long days ride.

Listen to EKM advice,don' t drink or smoke for at least a day.
Pay close attention to your balance first sings of altitude sickness is balance,a quick remide for this is ROLAIDS the antacid,don' t know why but it works.

Next bit of advice is when you get that elk in your scope,breath,breath,squeeze.
Alot of first time elk hunters get to excited and jerk(even old ones),so put' em in the boiler room.Forget what pepole say about breakin them down through the shoulder so they can' t run.Hit' em hard and keep doing so till they are down.

Best of luck and drive safe.BBJ