Don't have Icon, I wish I did, but I do know that you will be hard pressed to fit anything bigger in the spare location. Some guys running 32-33" tires have deflated them slightly, tied them with a ratchet strap to pull them away from the suspension, but not the route I like personally. There are several other options of course, offroad bumper with mount, custom on rack or in back, but that's all your preference and likes.
Looking forward to your build too!
Have fun man!
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2005 Toyota 4Runner, Sport Edition, V8, K&N filter, Doug Thorley headers, custom dual exhaust, Bilstein 5100 W/ Tacoma TRD coils in front, FJ Cruiser coils, Daystar 1.5" spacer W/ Doetsch Tech 8000 10" shocks in rear, 2.5" 4crawler Body Lift, removed Sway-Bars, removed mud flaps, removed running boards, chopped body mount, 315/70-R17 Hankook Dynapro MT
Build thread:
http://www.toyota-4runner.org/4th-ge...ld-thread.html