You could get Volk TE37, Advan Model 5, Model 6, Model 7 or the special edition for example, they weigh 9.8kg each except the Volks which are lighter. Forged alloy these are. The Volks are also available in magnesium at 5.85kg each, but you dont want to know how much they cost.
I believe the TD Visage are also the size you ask for (extreme 7 wheels).
Do you like the Circlars?