65 Barracuda AWB Funny Car
There is a thread on here somewhere showing a member doing exactly what you're proposing to do. I believe he was building a 66 Barracuda. I believe the thread was titled Barracuda funny car.
Also, diehard Mopar guy Steve Magnente has built several AWB cars, including early A bodies, and has devised a relatively simple way of moving the rear axle foward. I'm not sure where you'd get it, but he has compiled all the steps of how to do it on a DVD. Good luck with your project, should be cool when finished!