Wheel offset clearance question
So I have a 2019 f150 crew 6.5' bed 5.0 truck that came originally with 20s. The truck needs new tires and I was thinking of dropping down from the 20" wheel to an 18x9 that I like. The wheels I want come in either +20 or +1. I've narrowed down the tire I want to either Toyo Open Country AT3s or Falken AT/4w, but I cant decide on the best tire size. 275-70-18 or 285-70-18, I'd like to have a very slight poke for the wider more aggressive stance, I know the 275-70 will clear on the +20 wheel, but will it still clear on the +1 ? Will the 285 clear at either offset without any level ? Eventually truck will get a reverse level from either Max Trac or UMI. Thanks in advance for any help. Also if you you have any pics at these sizes/offsets it would be good to see.

