he is a link to the Firm Feel units. I don't think they offer them with the inboard offset; http://www.firmfeel.com/leafhang_e.htm

This is the Mancini Mopar set up that is .8" per side, that is also set up for SS length front spring segments. http://chucker54.stores.yahoo.net/manofshacand2.html

There is also the Dr Diff offering for 1" offset for use with SS style spring segments. http://www.doctordiff.com/?page_id=41

If you planning on a Body rear with the inboard spring set, either Dr Diff or Mancini can supply the kit you need, even if you do use fiberglass springs. I believe Firm Feel can also, but you need to ask them as it may be an unadvertised unit that is not listed on their website.

Also, just so you know, most oval track spring suppliers who are offering the composite springs have lifted their design directly off the Direct Connection oval track spings developed in the mid 70s. The same typically holds true to any steel spring offerings they have as well. These springs have a 20.5" front segment at installed height and are not a true 20" set up like an SS springs. SS hangers will work with these, but will move the housing back half an inch. Not a huge amount, but to some, a noticeable distance.