You can save money by removing the entire aframe if the bolts are not seized solid so the local garage only needs to knock out the old balljoint and press in the new one. To remove the entire aframe in one go start at the balljoint lossen castle nut then wack accordingly until the balljoint seperates from the axle. then find the 2 big bolts that hold the aframe arms to the chassis brackets. They can be real tight so big extention bar and ring spanners needed.
Dont try to remove the chassis brackets the 3 bolts either side are normally seized solid and being stupidly small always break.
refitting is reverse about the hardest part is the axle rotates slightly whent he balljoint is seperated nothing you can sort with leverage.
keep checking the castle nut for a few weeks after refitting.
Also worth renewing your upper aframe bushings.
Evryhting can be done with all 4 wheels on the ground. The landrover wont fall ontop of you lol.