You know what the 4Runner is unhappy with? Mountain pass driving fully loaded with 4 people and hockey gear. Made me research superchargers when we got home. I didn’t buy it to be a highway cruiser, though. That’s what the wife’s Jeep is for.
Overlanding is just car camping. You can get most of the crap you need to go car camping for a weekend for ~$100 from Walmart. Find a state park that’s not far away, and you can make a weekend trip for ~$150 all in that feels like you’re in another country. Read more
Land Cruisers are a tad smaller. Sequoias are more meant to be like a Tahoe competitor. They can off road, yes, but a Land Cruiser or 4Runner will be more capable. IDK much about the 1st gen but the 2nd gen Sequoia had an optional center differential lock