i think i still have the plans for that design listed above from another member a long time ago, and its actually not to bad.
Im currently redesigning my new airbox, as my other design works really well with stock cooler piping ,but with an aftermarket cooler and i can no longer use the snorkal.
My new one will still consist of 3 side walls and a lid that screws on and off for easy access to the pod, and it will have a direct feed from the front bar to the exisiting hole under the pod where the old cooler use to sit.
The inside of the air box will either be from firewall foam, or i've been to clark rubber and they sell a foam/rubber insulation, so i will be testing all this out in the coming weeks and will post my results
on a side note i've also started to remade a coil pack cover with my number plate letters cut out and meshed out and put LED's under it to