I was looking for the same thing too while ago.
As student like you, I do a lot of DIY thingy.
I believe you can find the information on this forum about how to cut off the second wall to make the basket as single wall (un-pressurised) one.
If you need the spare one, I got the factory one (double wall) from the Ikon wreck.
If you are happy to pay the postage, I can ship it to you.