Read the nothing but Dewalts paper to understand what parts you need/should leave intact. At the end of the paper it shows a welded aluminum clamp to hold the nose. For OCCRA, a lot of teams use an U-bolt exhaust clamp. You can then block in or strap down the handle to act as a torque reaction/anti-rotation feature. This is quick and easy, but not terribly attractive.
http://www.mufflermall.com/index.php...roducts_id=734
These style of clamps can be purchased at any auto shop for a few dollars.