I would probobly go with the 9000's, unless you have enough money for the Bilsien 7100's... I have no experience with them but from what I have heard they are really nice (but not even sure if they make the right size though) If they don't have the right size I remember someone stating that they do custom sizing. I loved the way the 5150's rode but snap, crackle, pop goes the top eyelet with MILD/little offroading. The front Bilsteins (H1's) that I have (their OEM type ones) seem to be too loose, I would go with H0 maybe or if you can find a gas pressurized one go with that, and let me know what you went with.
2001 Ironman Daily Driver... 3.5" suspension lift (OME912 springs and 1" spring spacer), ball joint flip, 1.5" front diff. drop, 33"x12.5 TrXus MT, 16x10 Eagle Alloy rims, Interceptor, PV muffler, K&N air filter, Alpine Supercharger, Bilstein shocks, and some trimming.
2000 Ironman Project LS-1 VX... very slow progress but someday....... ohhhhh someday......