Yup, should get it done, I've put countless hours on a 4m Radsail, not a bad all around kite. 10mph you'll probably be underpowered until you figure
out how to milk the kite, by 15+ I think you'll be finding it the perfect size.
Sysmic S1 Buggy.
0.7m / 1.4m / 2.0m PKD Buster I
4.4m PKD Buster
10m JoJo RM+
6m Flysurfer Outlaw
12m Ozone Access