To be ridden by 15 y.o., 120lb elite girl for sprints (20k). What race day wheels would you recommend? So far I've zoomed onto Zipp 808 or DT Swiss ARC 1100(1400) Dicut 80mm. What about using a disk for rear? Thanks!!

Just for reference: her road bike setup is Felt AR with Campa Bora 50mm.