Thanks for all the great info. I've been coming to this site for the past year plus when I was preparing to hike Whitney for the first time. It is a wealth of information.
Last year we stayed in Lone Pine and spent a day around the Portal acclimating but 2 of the 5 in our group didnt' make it due to altitude sickness which is why we are camping this year. I did make it to the top with my oldest son and brother. Great experience but when I got down to the Portal said I'd never do it again....but here I am, excited and ready to go with the same group and a few more.
Thanks again for all the great advice and the picture of the locker.