start out with a 4 line fixed bridle kite with handles or bar. Get a 3m size and learn from there.
The 3m will be good up to 18-20mph for your weight at a guess.
Ozone flow is a good model to start out on.
After a while you will want to upgrade into Depower. but for now learn the ropes on a fixed bridle kite.
Also go to
www.kitecrowd.com. That UK Based forum has alot more landkiters on it and you will get more advice than this one which is mainly kitesurfers and snow kiters.