I will help with what i can before the regulars chime in.

What are you trying to achieve with adding the lift? Mall cruiser, light off-roading, heavy off-roading? There are no longer any 87 or 88 springs available nationwide, so that is not going to be an option unless you can find some in the classified section or pull-a-part. You can still go with 89's for the front, but it's not recommended unless you are going to run a bumper. The 1.5" spacers are required for a tire this big unless you are running aftermarket rims with a different backspacing/offset.
Here is my parts list to give you an idea:
[list=]MarkMC 3" suspension lift
Moog 81114 front coil springs
Bilstein HD struts (pn 24-103336)
Tahoe Z71 rear coil springs (pn 25978750)
BDS 5500 series rear shocks (pn 55619)[/list]
I will be running 265/75/16 tires on MB Rocker wheels. With this setup i will be maxing out the front suspension and run the risk of topping out.