The bushings will come out pretty easily once the steel inner sleeve is removed. I've been able to push them in and out by hand once that sleeve is removed. in some cases a flathead screwdriver can be used to pry them out. Just be careful and they will be reusable.
Energy Suspension makes specific lube for poly bushings. I would suggest sticking with them as some others will tend to deteriorate the material.
DO NOT use threadlocker on the ball joints, you want to use anti-seize instead