A small lightweight rig like this can get you to 80% of the places you would want to go. Overland travel is not reserved solely for those with dedicated off road rigs.
Easy access is always on my Dad's mind. The cap has access to the bed from three sides. Being a small ranger, almost everything is within reach.
Thankfully solar panels have become better, lighter and more powerful over the years. The panel on the left uses a cavas-like material that works even with a big scratch on it.
A generator gives you that extra bit of power when you need to make a smoothie. Not sure this is an overlanding necessity though.
Adding solar panels has become the norm on most modern rigs. My Dad has gone through the whole evolution of solar beginning in the 90's.
Raising a tent for longer duration stays provides more space for storing things.
My Dad is very tech savvy for his age. Keeping in contact is a bit tough in the vast tracts of land. Cell towers are not always within range. We bought him a weBoost Drive 4G-M Cell Phone Signal Booster (amazon.com) to increase his wireless range. This device was a bit costly, but you cannot argue with the good success. This is a must to stay connected while camping in outlying areas for extended periods of time.