update guys!
Complete! Man ..... im so happy .... i love this car all over again.
Gone are the clinking & clanking ..... steering is precise .... the rear is firm & planted .... even when I force it to oversteer - it quickly tries to recover itself.
I have nearly forgotten how good handling a car the boxster is !! ...... money well well spent
So what happened was .... after more diagonal measuring on different point on the car & suspension connection points .... finally found the cultprit. I found that the downward "U" thing (i dont know what its called) that mounts onto the bottom sides of the engine, which the lower control arms connect to .... was slightly out. It may have been due to a big pothole or something ..... cos it seems it may be susceptible to torsional displacements.
Everything is now ship shape ..... -1.5degree camber both sides & 0.5degree toe-in both sides.
soooo happy....