Jconcepts Aero Xray XB2 Rear Wing might work as it looks flat, so you can place the holes where we need them.
http://www.jconcepts.net/shop/aero-xray-xb2-rear-wing
Or the Team Durango 1.5mm HD Straight Wing
http://www.team-durango.com/part-inf...artNo=TD480015