BigVIPness

Ok, the car is a GS400. I have Tein NA coilovers modified with Intrax springs. I have new tie-rods and ball joints to be installed with the coilovers. The main question I have is on Club Lexus alot of people cut the bump stops or shave them down to an inch. There's a little bit of info on the topic but it seems like there are conflicting reports on how to do it. There's also people who drill into the top of the coilover mount for more clearence. I'm going to be driving the car slammed, and I mean hammered, I want to do this right the first time.

Besides installing new ball joints and tie rods, what else needs to be done to insure a correct installation?

Thanks!