@DPA200 You have the "Rock Warrior" wheels (with TRD spline drive lugnuts) that came with the Tundra Rock Warrior package. They're not too expensive if you look locally on Craigslist. You can find a set for ~800-850 if you look around. After checking Craigslist for a while, I picked up a second set a few hours away for $600. They are the only forged 17" wheel you can get for this platform. The only other wheel I'd consider are the 17" Hutchinson Beadlocks and those are much more expensive.
But compared to the oem alloy 18" ebay take off wheels that sell for practically scrap value, they are more expensive.