Need new tires and want to get a bit more clearance (taller tires): questions

Thanks for the response Will. I'd gone through several threads before posting but just went through more now. Came across your words from 2 years ago, pasted here for reference and posterity's posterity.

"Want good mileage, get a stock sized highway tire designed for that.
Good traction and reliability off-road, they have tires for that but you pay for it as they are heavier and have a higher rolling resistance.
Need better clearance, get a taller tire and pay with the MPG hit you will take.
Want good snow traction, get dedicated snow tires, but you pay by having another set of tires that will wear out quicker when not on snow.
Don't have a lot of money, get cheaper tires and pay for it by having less performance and/or having to replace them sooner.
No matter what tires you do end up with, getting a truck tire is my #1 recommendation, passenger tires just weren't made for our vans."

So then, can you briefly explain why you recommend a truck tire, what is a truck tire (initial research says they're larger/wider than car tires - so, will this affect mpg?), and potentially recommend a brand/model?

Hey. Thanks a lot for chiming in! That’s a wealth of input. My high top conversion van is indeed 2WD, and I had no idea this affects lift possibilities. So, yeah, if I can’t lift, say, the oil pans, then I reckon a lift will be purposeless as the big idea is to be able to maneuver over some rougher terrains without damaging anything underneath. If that’s the bottom line, I’ll just have it suck up that fact. I’ve done a whole bunch of boondocking all over the country in the past eight months, but anytime people (online) spoke of needing good clearance, I had to sadly steer clear, but I have gotten around to many remote places. I’ve also had 4 normal car tires on there, nothing whatsoever to brag about (the most esteemed is a basic Hankoock). Still, I’ve had zero complaints about the handling, aside from the dirty rocky back roads (especially washboards) where the van shakes a fair bit and is overall stressful, but not sure how much better light truck tires would manage, and not sure I really wanna fork over upwards of $1000 to find out (vs $500 for car tires). Also, despite having a fridge, bed, and kitchenette//sink area, my load is probably relatively light (not much more than if I was carrying 3-4 passengers), so “load” is not a huge issue.

Better mpg always gets my attention. And would love even little more clearance. And a smoother ride on the rocks. But maybe I can live with what I got. Jury’s still out at this moment…

Hey. Never heard of RPO 'till now and Google told me to look in so-called glove compartment and found attached sticker there, but no G80 printed anywhere.

If I'm an expert at anything it's buying things on the cheap. Current tires bought half-used and mismatched brands and for nearly nothing. But that was 18,000 miles ago. I definitely have my radar on used tires, tho' pickings slim in remote region presently abiding. But thanks for the tips - interesting that you use bigger in the back. I thought they all had to be uniform What was/is your inspiration for doing so?