If you are not ready to dent sheetmetal, don't worry about the SAS. You won't be on trails where you need it. You can fit 33's inexpensively and reliably. Take a look at 4crawler.com and also Sonoran steel to see what I mean.

The IFS can be very very strong for a small amount of dough

Frank

1994 4runner, 3.0, auto, 4.88's, 31's, BJ spacers, Coil spacers, air shocks, D-ring anchors, 4Crawler F/R swaybar discos.
www.sdori.com