Hey guys, I will try that today - thank you for your help.

My only concern is that this is what caused the problem in the first place - the control arm was supported by a jack stand while the stud started slipping out of the knuckle.

If this solution does not yield any results, I thought about following the procedure below:

1) Leave the compressor in, try to give it a couple more turns with the LCA resting on a jack stand
2) Loosen the LCA bushing bolts
3) Secure the top of the spring to the perch with ratchet straps
4) Place the floor jack underneath the LCA, jack the vehicle up, place jackstands on jacking points
5) SLOWLY undo the floor jack and get out of the line of fire
6) Hope the spring undoes itself from the LCA notch

Obviously, I am not very keen on this strategy, but if I cannot push the stud in on the vehicle, I don't have many more options left. If anyone has a better idea, any help is greatly appreciated.