I read it perfectly. I would absolutely recommend the truck I previously stated. Mid $30K's can get you a new truck. Not sure where you're getting your info from. Diesel and 3/4 ton makes perfect sense. The 6.4 is a good motor too so that's a choice if he wants to go gas. The factory tires on the new Rams are 33's so going up two tire sizes isn't gonna hurt anything. They look like they should've came from the factory that way and fill the wheel wells perfectly.
I'm not sure if you misread the guy's post, but would you really recommend a 3/4 ton diesel on 35's for someone that only needs to survive beach trips and logging roads? Mid $30k's will get you a diesel with 100k+ miles. Mid $20k, you've got a gas truck with 40k miles. $10k difference. He'd wear out both trucks before he broke even. Diesel and 3/4 ton just doesn't make sense to me in this scenario.
He did mention "camper" and shows pictures of some DIY lightweight set up. That's what I assume he meant. If he's talking Alaskan or something else of that size/weight, then a 3/4 ton makes sense.