65' Dart straight axle info

Hi guys. I didn't want to hijack anyones thread ; so I thought I'd start a new one. I have a 65' Dart and am considering going with a straight axle. The thing is that I don't want to go with an altered wheelbase. What I'm wondering is; does the straight axle have to be brought forward for clearance purpouses? Or can it be mounted in the "stock" wheelbase location? I'm also wondering about the pics of the "Charlie Allen" 66' Dart. It is evident that the straight axle has been brough forward (thus the wheelwells have been trimmed); but the rear axle "looks" like it is in the stock location. Does anyone know for sure?

The wheelbase on Charlie Allens Dart is stretched slightly. The rear wheel openings are nearly stock, and the front spring location is due to specially made front springs that were to allow exactly 4 inches of lift before the front wheels pulled off the ground.
Charlies Dart had a fiberglass body, doors, fenders, hood, and bumpers. His car was purpose built from one end to the other. It also had a Corvair front steering assembly.