Cold air ducting, how?

[L18M]

Anyone got any ideas how i can make a box in this space to get as close as 100% cold air going to the filter?



i should add the reserve tank has been relocated to fit slam panel.



I read someone had some mould-able sheets of plastic? to make some ducting? Think Jono used before but i dont know what its called.

else a case of just some tube being pointed at the filter?
would rather an enclosed box of some sort.
:guinness

[L18M]

or what about just bolting the air filter to the front of the car between the v-mount (to one side) and using plastic flexible hose straight to turbo?