Use the standard round leaf spring bolts. And do the U-bolt flip thing.
May have to grind a little off the lower casting.
I'll take a look at mine and see if it looks feasible. I have some round U bolts laying around.
In the link below you can see the bottom webbing is notched for the left hand side.
http://www.4x4wire.com/jeep/tech/axle/yjrcdana44/finished.jpg
Also see if this site might help as far as bolts.
http://www.stengelbros.com/U-bolts.htm
Here is my 79 F150 D44 with the top casting for the leaf spring. But with my link mounts welded on.
I even had to grind a little webbing off the top for my top plate to sit.
Just flip your spring bolts. Where you see the bottom bolt that I placed near the bolts that run thru the casting is where the original bolts came down from the top. But flip the bolts using the new round bolts and come thru bottom. Only thing you will have to grind some of the lower webbing off on that side.
The link I posted is the same axle with the flip and grind thing done. Notice how the bolts are so much longer. Obviously different bolts then stock.
May have to get some generic top plate, or modify the one you got, no big deal here.