Does anyone know of any wall tie downs I could install on an NV2500 cargo? I'm looking to tie my dirt bike down to the wall to give me more room for other things in the cargo area, aka a bed. I've seen things like this for other vans: http://www.discountramps.com/cargo-tracks/c/1470/ I have to wonder if this method would be secure enough if I was involved in a collision.