I am replacing the OE 20-inch Pirelli Scorpion All Terrain tires on our R1T with Michelin all-season. They have 29,800 miles on them, never been off-road and no tire repairs. Rather than having the tire dealer dispose, I'll retain the 4 of and give them away. Attached picture shows the tread...
The Direct Current Engineering (DCE) rock sliders (https://www.weistec.com/rivian-rock-sliders.html) aka 'running boards' I now have on our R1T really make access much easier. They will have some effect on range since the added weight is 124 pounds and now the underside of the truck is less...
We also have a Oct-Nov delivery schedule. As a life long Vegas resident, Ocean Coast is a must. Looking forward to the Rivian Service Center in North Las Vegas getting some OC deliveries.