Hi Hazz,
Am breaking my R32 GTR at the moment which had mostly adjustable suspension arms, think the two pieces that would fit your R33 from my R32 would be;
Adjustable Tension Rods (Driftworks)
Driftworks Hicas Eliminator
If you're interested in either just drop me a pm, both have pillowball bushes and are in good condition with no knocks/notchy feeling. Being fussy the only thing they would need is new dust boots as the old ones were perished and split when I removed the arms.
Cheers,
Alex