(repost, because last time i got connection errors)
Upper ball joint is finally loose. I used the dremel grinder to get it of because I completely wrecked it using the wrong spanner (slap on the wrist, Rob). Just ordered 4 new castle nuts from Ed.
All parts are properly degreased (except the ball joint themselves) so I can start sanding everything for a proper paint job.
I was undecided on whether or not to disassemble the lower arms, but then i would need to remove everything: Shocks, Stabiliser and Springs. Too many solid bolts to undo. It may cause more damage than is necessary. I'll paint everything in place.