chieftim, I know you already ordered the wheels and they’re basically the ultimate setup for load capacity, however, everything is a compromise. They are not the best for winter traction and beach travel (aired down).
Snow will be “ok” as is. Siping will help if they’re not good enough.
Sand? If it’s hard pack beaches, fine. If not, those tires are hard and skinny and can’t be aired down a lot.
For all round use I’d keep the factory rims and some 295 wide heavy load range e tires.
Or if you’re uncomfortable with rim rating, Method NVHD rims.