I'm getting a Truxxx 2"lift for my 2024 Telluride SX Prestige X-pro. I was looking at getting 18" Black Rhino Arches and Nitto Nomad Grappler tires in 265/60R18. I also was considering the 20" Black Rhino Arches with Nitto Nomad Grappler tires in 265/50/20. Is there a certain offset I should be looking for in what ever rim I choose? If anyone has either size can you please tell me the specific specs of the rim. Also I really don't want to have any rub or trimming needed. Is this possible with my selections? Any help would be appreciated.