. I was researching and saw $10 per day from enterprise. ]
This sounds like a 'Headliner' figure to me that you may struggle to find for your dates, so I would research some more by getting a proper quote with basic info like your ages and 15 days in June/July. Renting is a safe option for the reason you mentioned and there is no other option unless one of you own a vehicle. If you do and it is checked and mechanically sound and serviced before you leave and you join the AAA then there is no reason not to use it.

I have never camped and thus would like to get more honest opinions.
It can be a great way to get among nature but it's not for everyone. If you are to plan your trip around camping I would suggest you spend a couple of nights locally camping so you get the feel of whether it is for you or not. It's also a good way to discover the things you 'wish you had' ready for the main trip. Here is a link to a list of useful camping items.


* Also, we would like to do different different things. what i read is Grand Canyon, Bryan Canyon, Zion - all of these are similar - we would like to mix it up and explore more as well. And we are very much open for suggestions. -
Anyone who said this I would think are not Nature lovers as you are, to be frank these statements are ridiculous. Sure they have red rock and canyons but each has an amazing and unique identity !

I would like to have a travel + photo journal and would like ideas.
People do create their own travel blog sites but we do have the Roadtrip field reports section where you can write about your travel and upload photos. Take a look, friends and family will be able to follow your adventures even if they don't want to sign up.

We both know that both of us will never get a chance like this and this trip is going to be the best part of my life yet so we want to plan properly.
We all understand what you are saying and planning should be a fun part of the journey as a whole. The truth is that you will have many more opportunities for 'Once in a lifetime road trips' and like all us regular RTA members, you might well catch the bug !!

Keep researching, you will find endless amounts of info here at RTA, check out the blue footer at the bottom of the page. Once you have a few pins in the map and a clearer idea of the places you really want to visit we can jump in and help you tweak it and make suggestions.