Hey zidaro.....Not sure if you have heard of these guys....they build really nice prerunners here in San Diego. James knows his stuff....he might be able to answer some questions....http://sdtruckshop.com
Congrats.....I bought a '13 Tundra CM 4x4 recently with 20k on it. We've had it out in the desert a few times.....Does awesome bone stock.....But mods are in the works.
Be sure to keep us updated on your build.