Racing tires tend to be good for one thing: racing. I would be concerned about the ride quality and longevity of real rally tires. My research into rally tires led me to believe they had very thick side walls and very soft compounds, and it wouldn't last very long on the road. Here's a short video comparing street tires to rally tires:
https://youtu.be/GNW2yzVqAyo
I have the BFGs on my car, it was the easy button. I've run them a lot on trucks and I know they're durable and reasonable ride quality. The bigger diameter hasn't really caused any issues with my gearing, but a 26-in diameter would be nicer. You tend to drive one gear lower than you normally would, but if you have a healthy engine there's still good acceleration. I have a couple spare transmissions with shorter gearing I could easily swap if I felt like it was a problem, but I haven't. Tires are consumables. I'll probably try something different when I wear these out.
The Geolander appears to be a decent option. The smaller diameter would be nice. It has a less aggressive look, which is why you probably don't see a lot of them. Here's a wide body scrs inspired car with braid wheels and geolanders:
https://bringatrailer.com/listing/1983-porsche-911-sc-safari-build/
For what you describe you may not need drop spindles and a lot of ride height. There's quite a bit of adjustability in the stock parts, but if you raise it too far you won't have much droop travel left. If you like the lifted big tire look go for it. It will be fun either way. 305 rwhp on skinny all terrains is going to be ridiculous, especially on loose surfaces. I've got about a hundred horsepower less and I can break the rear tires free and slide the back end around at will in the dirt.