Need full head dark extensions- need body on top especially!?

I have naturally medium/dark brown hair and it's wavy on one side, straight as a poker on the other! I recently had my hair cut off and kicking myself right now!!! (and since I had it cut!) However, I want a really Curly weave, like of like Rochelle Aytes' hair (although hers is natural) but need to find out if I would get away with it, being that I'm only 1/8 African and the rest German and Italian. I have a dark complexion (dark olive I guess) so I've worn my hair really curly before.. However, I need an ALL OVER extension process..willing to do bonding, whatever.. I need alot of fullness on the TOP of my head though! Anyone have suggestions and about how much it would cost?