My husband and I are planning a 9,000 mile expedition around the USA. Pretty much off-road camping in all different National parks. I was wondering if anyone has done something like this before and could you give us any advice? Also the type of camping we are doing is overlanding where you rely on your 4x4 vehicle to take you to remote locations. If you have done this before what modifications did you do to your vehicle to accommodate your dogs? Our plans are for a jeep wrangler Rubicon unlimited 4 door

This isn't a jeep but you get the idea.