Spring relocation issue questions

OK- Im finally gonna do my spring relocation today. The big question is- in seeing that the major tire fitment problem ultimately becomes the front lower fender lip- could I just move the front spring eye holes back a half to one inch, ultimately lengthening the wheelbase?? What kind of clearance do I have from the rear (8.75 to the stock gas tank). Im asking because I still have the 7.25 and wont have the 8.75 for a month ($$$). So does anyone have their 8.75 equipped Dart with a stock tank on jackstands right now so they could take a look-see/measurement right now??
tnku
Ill start cutting in a couple hours, so any informed help ASAP would be greatly appreciated...