I heart my wheels too. 18x8.5 +45 16lbs gram light 57f's oh and they weigh in at 16lbs. Only downside is can only fit a 225/40/18....they are pretty close to the rear control arms.
I think you should look to at OZ ultraleggeras in black
I'd say go with goat blowers volks and powdercoat them black, or else get the OZ ultraleggeras. Otherwise I say any ultra light wheel in black. I'd stay at least 17", otherwise you have such large sidewalls