32s will fit with slight trimming to the plastic behind the front tires..
Poor mans lift = New rear shackles and adjusting the Torsion bars to gain 1.5" of lift.
This is half of the 3" lift to begin with so if your looking at a easy way to start that would be one.
A Body lift for the Gen 1 Xterra can be pieced together for under 100$ Its really easy to do and will allow for larger tires..
For a Expo version of the Xterra I would recommend the BFG KO 33" 10.50 15R or the KM2 10.50 15R This is a nice tall tire and yet skinny too.
Normal 33s will be a 12.50 wide..
Armor? The Xterra came with a gas skid and front skid.. Both are thin but do add some protection on normal use. You have to balance the build if your looking
to do a real Expo rig.. Armor is nice but it comes with a price... "weight" The 3.3 V6 is not a power house of a engine as is rated at 170-220(SC).. Once you start adding larger tires, Bumpers (Front and back) and rock sliders your adding about 3 people or more to the rig with out having them in the SUV. Then add a fridge.. supplies and gear and you have a HEAVY load. Then with the larger tires you better be ready to re-gear it.. The Xterra came with 4.6 or 4.9 gearing.. Great for a little larger tire but with 33s its a hair much on the HWY.
Plan plan plan for the real use of your rig.. I love my Xterra I have owned 3 of them 2001, 2000, and a 2009...
They type or maker if the lift is blaa... Calmini or 4x4parts are the 2 main people to pick from... I own parts from both.. and love them..
They both have about the same quality as well... Skids.. Shrockworks or Skid row... I have skid row and love them... easy to install and take a beating... Shrockworks
has a bad rep for delivery issues.. They will tell you 6 weeks and you will get them in 6 months.. Great product.. Just bad, bad service..
Bumpers... ARB makes a great light bumper.. ITs not as strong as others but it does the job.. A new company
www.rlcweldfab.com is making Gen 1 and 2 front bumpers..
I own one and its BEEF cake! Shrock is very nice but once again.. wait times will be LONG!
Rock sliders are a must! White-knuckle is the way to go.. Built nice.. bolt right on and John is very fast on delivery.. 2 to 3 weeks.. and he builds to order.. so trust me that is fast.
Either way check out
www.xterranation.org or the other forum to research and get a feel for what others have done.
drb