Be Prepared to open up your wallet
Wheels are probably gonna have to be custom built by Forgeline or someone that offers that size.
Tires can be 345/25/20 to stay oem diameter, not too many options there or 345/30’s would come in at just over 28”
I’d give Jason a call at getyourwheels.com, as he’s dealt with some large combinations.
Couple guys on here running 19x12’s w/345/30/19’s