I am planning to do the 3" Spring lift convertion to my VX.

I already bought the OME912 Springs. I am also installing the Rancho 9000x shocks, which I already bought.

I have been checking several sites that offer lift kits, and found that they also include
1) 2" POLY COIL SPACER,
2) 4" BALL JOINT SPACERS,
3) 2" Bumpstop Extention
4) LOW PROFILE UPPER A-ARM BUMPSTOPS
5) REAR AXLE BRAKE LINE "T" EXTENSION

Are all these items really necessary?
The extensions are rather cheap, but the 2" Poly spacers are $100 and the 4" ball joint spacer is $45.

Let me know what you guys think. Should I also install all these extra items?
Will I get more than 3" lift?
Will I get better alignment and a smother ride?
These are statements that these sites claim.

I found these items in these sites:
http://www.independent4x.bigstep.com...0&PRID=1247371

http://www.darlington-offroad.com/ca...?UCIDs=1031042