Look at Race Techs. Reasonably priced. I'm about your body weight and the .75's and 10wt is working well for me. They also offer a .95 rate. Ability, terrain and expectations are all factors though. There is no magic answer. YMMV
It took me 5 months to get mine though, so clarify that before you put money down.
Don't bother with their rear spring. It is just an off the shelf Eibach that can be easily had for half their asking price.