Uhm.. I don't know how much of the Superlift kit you got. (ie, did you get *everything*, like the radius arms and steering?)
We did the rear in about 3-4 hours (stuck bolts - Nebraska winters combined with salt, and 5years of never been touched).
The front took close to 20 hrs of labor - that included:
Drop front end.
Remove old radius brackets.
Remove old radius arms.
Remove springs.
Remove sway bar.
Remove steering.
Remove ford drop brackets (tip - cut a slot across the rivet heads, heads peel right off with a air chisel. done in 2 minutes)
Install new drop brackets.
Install new radius brackets (includes drilling 2 new holes, grinding off 2 rivets on each side) (extended radius arms).
Fight to get new radius arms on TTB's.
Install TTB's.
Install springs.
Bolt up radius arms to brackets.
Pull steering box.
Replace pitman arm on steering box. (best done off vehicle).
Install steering box.
Install steering. Cuss at superlift, sent wrong drag links (appears to have been sent F150 parts)
Do a rough alignment.
Bleed Brakes.
Most of the work was spent breaking bolts. Ie, the spring studs was a royal pain - they was *tight*. It took less time to reassemble than tear down.
I'd give yourself atleast two days. I had Mac helping on mine - and he had already done this kit on his truck!
Oh, and spray every nut & bolt with wd40/breakfree lub, a few days before. Makes a world of difference on the rusted bolts.