Found this generic looking aerospoke on ebay, the company Used to make them slightly different before, these look a lot more like aerospokes now.
they only have a front wheel though im sure you could swap out the center and custom make a rear wheel.

type in TMC 700c wheel on ebay to find it. or heres a link for one on a auction bid
TMC 700c 5 AP Spoke Front Wheel Rim for Fixed Gear Bike Bicycle White PCQ0041 WH | eBay