Nice Nav mate.
Turn around and leave this forum NOW, otherwise you will spend endless hours here, and your money WILL disappear into the Nav at an alarming rate doing mods etc.
But otherwise its great!. One thing you will find though is the plastic tubliners like you have turn out to be more of a pain than anything. Sand/grit/moisture get trapped underneath it and its not the best sort of treatment for the tray underneath. The spray in tubliners work a treat, many on this forum have already done it with great results. Taking the plastic tub out now and again and cleaning underneath it does help though.
Hoo Roo
Ray