I agree with the above. Don't overplan - plans will change. Don't try to see everything, cos you can't, but won't make sense to skip famous attractions, because of some admission fee, either. You will create a balance into that once you're underway.
Camping: unless you really love to camp, ditch that gear for south&southeast Asia. no use to carry them when you get a rain shelter and a bed for a few dollars a night. There are very few campgrounds, and it is mostly populated area so wild-camping spots could be tougher to find.