Yah I looked into that and it would be much more $$$ as I am rolling with 3.13 gears and would have to regear my rear end or say screw it and go to the m226 Titan (which would be bad a$$)
Having done this, I did opt to regear the R180 (diff swap) and C200K rear end to 3.36. If you are going to Titan Swap the front, you will be achieving about 4.5-5" of suspension lift in the front. Complimenting this with new leafs and adjustable shackles is the common route....which leads to taller tires, hence the gearing mods.
This all begs the question...will you be seriously off roading your Xterra or just a lift for the look? If you are truly headed for rockier pastures, spend the extra $$$ and re-gear now, to at least 3.36, preferably 4.10 to roll your larger 285's/305's for serious off road travel (both kinds
).
Just a few suggestions as you head towards Titan Swap territory...