Not a major problem. loosen the trans mount crossmember .
get a big lever in one of the lower control arms and move the axle assembly back or forth to line the leaf springs up with the bolts. As long as you can see where your leaf springs were originally you can bolt them up using the marks .
Redo the trans crossmember bolts and you will be fine.

The W110 uses a mount bush which is pretty stiff so be prepared for some wrestling.

i have used a small comealong to pull them into line too.