just my two cents here and nothing more...

if the ball joints are shot, how is everything else?
how long can the car be laid up?

this suspension system is military grade, strong, overbuilt, and easy to maintane...when we did my w123 suspension, we took it all out and reconditioned all to new...the ball joints junk, the swaybar bushings gooey, other rubber brittle and cracked - the most horrid being the rear joust bumbers and front subframe bushings....

once you have a safe and sound set of front and rear spring compressors you can go to town on thses old things...heck even taking out the rear subframe goes easy as pie with a spotter...

again just my two cents...and who really wants to do a ball joint like this on the car???
Jake