Those are the single slot version of Wilkinson's 17” Campagnolo replicas. Just get out your credit card and call Steve Wilkinson (Pantera's by Wilkinson). Also, years ago, I saw a set of single slot wheels made by Boyd Coddington, now American Republic Wheels. You'll find their contact info here in the forums. They normally have a $500 "custom" fee but since they've made them before, I doubt there would be an extra charge.