The bed on the Navara is bigger than the L200 Doug if its one of the L200's with the rolling shutter lid, because of the foot that the shutter housing takes up, that it rolls into. My mate struggled to fit hardibacker sheets into his L200 lenghtways because of it. The haribacker rep got them in his ranger easily, and my cousin is a plumber and gets them in his Navara with the pivoting lid easily as well.
He paid around 7.5k plus vat for his Navara which is an 04 plate and only had 30k on it.