Put the car up in the air, took a reading off the disc with a magnetic 360 degree level, puleed it apart, put it back together with the same reading on the level. Piece of cake!
Learning experience: Only ever had mk1 stuff apart before. Strut bolts to fender, centre nut takes strut apart. Mk2, centre nut takes strut out of car, oddball nut farther in takes strut apart! Need to get THAT tool for the next one! Got the job done, but shouldn't have tackled it without the right tool!