Bolt in offset spring hangers for SS springs do not exist. You can choose 1" offset for stock length springs or standard location SS spring hangers.

The 3" relocation kit will accomodate SS springs, as they weld into the frame rail.

IMO, use the 1" offset kit. Mount your stock length main leaf, re-drill and re-stack your SS leafs under the original main leaf without using the SS main leaf. #2 SS leaf tip should center under the front eye of the main spring, and then everything else stacks under it as aligned like the SS pack orientation. That way you get the offset, a longer main leaf, and SS spring action. This is an old class racer trick outlined in the Mopar Suspension Manual for cars that are required to maintain original mounting locations. Its well established and proven effective.