I too wanted a 3" lift, but when I talked to Independent4x they didnt recommend beyond 1.5" lift for my Rodeo because of cv joint angle. I did all the ball joint flip, etc, so I don't know if that still applies. But I would give them a call and ask their advice.
I was able to fit 33" tires, so I am happy with my smaller lift. I just added the new OME leafs which gave me approx 1.5" lift, then raised the front to bring it up level.
Adding a leaf in the back would give you a lift, as well as longer shackles. I just read a posting that talked about inexpensive options for adding a leaf; more junkyard options than the OME add-a-lift. I will try and find it again.
And indy4x didn't recommend the longer shackles, so I followed their recommendations and just added HD standard length ones. I think the factory ones are fine, but since I had it all apart to replace the leaf springs, I did the shackles as well.
If I had it to do again I would have just added a junkyard leaf, and called it good. I would have skipped the HD torsion bars as well. I think the ball joint flip is a good idea to reduce the angle on the cv joints though. If really ambitious you could do the differential drop brackets to further improve your cv angle. I thought about it when I had my front differential out, but decided to run it this way as I don't intend to be on really challenging trails.
94 Rodeo, 115k on odo. 4x4, 5spd.
Changes; Indy4x HD torsion bars, OME springs, indy4x shackles, Indy4x ball joint flip/spacers, Warn hubs, sway bar bushings. New polyurethane boots for ball joints, and Mecatech boots for CV joints. Shock post extensions, shock boots, low profile bump stops.
BFG AT KO2 285/75/16, alloy wheels.
Regeared to 456, and front Lokka locker
Build thread; viewtopic.php?f=15&t=85242&p=753729#p753729