Not sure why....but I like your wheel and tire choice!
I'd go with the Polished Aluminum wheels, (since I've already got them! ha ha!), they clean up nice, and look pretty sweet. They also have good offset on them, so the tires stick out nice pass the fenders! (a plus in my books)
I find black rims on your rig wouldn't be the best setup, i don't mind them on black rigs, or even Silver trucks...but on white...I'd keep them light colored.
Another option, instead of silver and black, would be a Gunmetal Color like my winter set! In fact, the same exact color would look great with your color scheme, as I've seen a few white/silver 4Runners on here with the Gunmetal colored rims.
Honestly, if I were you, I'd bet some spidertrax spacers, paint your wheels gunmetal, and throw on those Bighorns...and call it a day!
