I've modified over the years so much I'm having a hard time keeping exactly what was what when.... especially when I look at pictures I have..
If I remember correctly, the Duff 2.5" springs with f-150 spacers in the front matched well to the OME-36 + WAR-153 shackles. I'm pretty sure this shot is of that combination (with 33" tires). That is about the limit of what was alignable with the stock beams.
Coleman Side view by
maniak_az, on Flickr
As for shackles... The War-153 shackles are 8.5" long (stock is 5.5") which is how you get "around" 1.5" of lift from it. So, to get 1" of lift from the shackles you would want a 7.5" long shackle. Off the top of my head I don't know of one made for the explorer (2.5" wide, 7" long with 14mm bolt holes).
@Brian1 is the first name that comes to mind as someone who could build it... He does really nice work
~Mark