If you want a bargain, my missus is selling the wheels that were on her previous bike. (she doesn't like 'em now because they don't colour match her new bike 🙄 ) They're Hope Pro 3 32 spoke straight pull hubs, sapim race spokes and DT 4.2 rims. Weight wise, I think they're around the 1600g to 1650g mark (dunno if that's light enough for you). I er…borrowed them and tried 'em on my PaceRC405 and they're brilliant, light but not fragile feeling like some 24 & 28 spokers – also nice and stiff (and I'm 13.5 stone and really wang the bike around on berms & stuff).
I think she's looking for about £220 plus postage. (still got the wheel boxes and spare spokes in the garage). If you're interested, drop me a line.