Rear Spring Question-Will this work??

Howza Bruthas,
On my never ending pursuit of jalopysism(c), I am wondering about a rear spring idea I have. See, I have the remains of an old Buick beam axle with some pretty serious looking leafs on them. It is nearly the width of the Model A frame. I am wondering if this spring combined with the shackles it originally came with (which look pretty damned heavy duty as well) will work for the rear of my roadster project?
See, I am trying to keep from Z'ing the frame, because it would raise my gas tank above the rear of the car. I like the look of the banjo rear and I am still trying to keep to a budget here.
Any opinions?
Here is a pic of the spring and shackles...

 

A shot of the rear area...

 

Finally, a close up of the Buick spring.

 

Does it have enugh arch to clear the banjo? Mock it up and see!

 

You also have to think about if it does clear will the rear end bottom on it when you hit a bump.

 

and with that many leaves in the pack,it wouldn't have much compression when used as a rear spring. If you mounted it behind the diff like a 35, 36.....ford, it should be fine with some of the leaves taken out. But that would mean moving the crossmember back.

 

mount it in front or suicide it off the bones>? im sure theres some way to make it work for ya

 

Alright my friends, I am going to mount it up and see what it looks like. I justrealised I took a pic of the spring with the shackles in the WRONG direction.
D'OH!