Unless you do some frame carving (which is certainly possible but must be done right), with the IFS frame you really need 3" springs or you will be riding on the bumpstops or worse! I am running 3" springs, FRORF hanger, Daystar braced shackles, and have just enough up travel to work really. Also Brian's comment about moving the axle forward is spot-on. You can redrill the solid axle spring perches to position the center pin further back; DO NOT drill the spring to relocate the center pin.

I fit 35s with no issues whatsoever. I'm not sure I would feel good about chain fitment in wheeling situations though.