First, congrats on the HP 60, rare as hens teeth in my area.
I dont know first hand how the Ford axles are set up, but check your caster angle on the knuckles first.
With the GM D60 my caster and pinion where both off, luckily in the same direction. If this is the case you will want to rotate the whole axle, not just the knuckles or center section.
Again not 100% on the Ford version, but the GM/Dodge have the pumpkin side perch milled into the casting, so no cutting the perches and relocating that way. At least not without a bunch of hassle and $$$.
Best way $$ wise and ease is shims, and I hate shims.
That said WFO sells STEEL shims made to be bolted into your spring pack. Will require a new center bolt, but they should be a lot harder to spit out than the ones that have a hole and pin to place between there and rely on the U-bolts to keep everything together.
Hope that helps,
modified flares, removable top, OBA w/200psi tank,
LQ4, 4L80e,NWF doubler w/upside down 203
SOA w/ D44s F+R for now
H1 wheels+tires (cut), hydroboost brakes
custom shackle flip