F150_RednecK

so, i went out a bought a F250 with a 7.3 in it for a couple hundred bucks with plans of droppin it in my F150 and lookin at the truck now i dont wanta rip the motor out of it, its 2wd how hard would it be to just throw a axle with leaf springs on the front of it like a 4x4 with out the tcase and stuff and what yall think it would cost? ideas are great thanks.
and would it be worth it, i love lifted trucks and i gotta lifted F150, just though havin a lifted diesel sittin around would be cool but since i wouldnt go off road no need 4x4