Other supporting hardware will be AS 2.5 leveling kit and 305/65/18 BFG AT/KOs. I'm looking for an 18x9 or 18x10 that isn't too flashy (preferably not chrome) and somewhat low key, yet not stock. Heck, if I could get a stock KR wheel in that size I'd jump on it. Any ideas?

 

Get some Rockstars and get them color-matched like this guy.

Rawasever299

 

There are a ton of black wheels that would look great on your truck. Pro Comp, KMC and Moto Metal make several. I'd stay with a 9 inch wide wheel with 5 to 6 inches of backspacing.