^Good advice. The upper rears should be easy - just need 17mm stuff. For the recessed nut I have a socket grooved (via Dremel) and clamp it w/ vice-grips. Might need some fine-nose vice-grips for the top tab in the rears to get the nut loose.
PB blaster is your friend. Don't settle for WD40 (useless stuff..).
In the front, do the upper nut first (set it in place, and thread down to the lock portion) this should leave the assembly hanging. Attach the knuckles, wheels, lower the car. The top piston is now as high as it's gonna be through the upper strut mount, so stick the plate on, and carefully tighten the nut (22mm) - the central allen key should be 5mm or 6mm (to prevent the strut piston from spinning; spinning it will destroy the valving inside).