To get those bushing out you need to remove the front spring and then the perch, Since you are going to do the lower ball joints that will br the time to do them. While you are at it change out upper and lower control arm bushings, sway bar mounts and bushings if they haven't been done. Look at schematics and do searches on front end rebuilds, replace everything so you won't have to go back in there. There really isn't that much but time consuming to do. Good luck and use the search function.
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If it ain't broke take it apart and find out why.
1983 300SD, 4 speed
1994 C280
1987 300TD wagon
1996 HD Road King
Ride in Peace Eric Peterson, Harley of Macon