These should get you started:
http://minkara.carview.co.jp/userid/357364/blog/14350284/
http://minkara.carview.co.jp/userid/357364/blog/14995989/
http://minkara.carview.co.jp/userid/357364/blog/14941352/
Ninja edit: they started with Wide ZG flares, added on to them and molded it to a widened front valance (like you could get from msa)