ESPO XHD stock or 1" drop leaf springs

OK, here goes...........first up a few things to keep in mind;
1) Most factory Mopars had zero to very little rake, the rockers were pretty parallel to the ground.
2) Changes in ride height could easily be the upgrade in tire sizes for some models.
3) This source was the only one to list heights by rocker to ground, and do not give a frt./rear, they DO say these are directly from all the mfrs.
4) None of the other sources list a rear ht. spec below '73, and that spec is from the top of the jacking slot to ground, with a variable range of 2-2.5"....not much help!

'70 Duster 6&8Cpe. / 7.58"
'71 Duster 6cyl.Cpe./ 7.25"
'71 Duster 8cyl.Cpe./ 7.40"
'72 Duster 6cyl.Cpe./ 7.33"
'72 Duster 340 Cpe./ 7.75"
'73 Duster 6&8Cpe./ 7.75"
'73 Duster 340Cpe./ 8.10"
'74 Duster 6&8Cpe./ 7.90"
'74 Duster 360Cpe./ 8.10"