Hi - Here is a dropbox link to the following It's Immaterial 12" singles in WAV :
https://www.dropbox.com/sh/afjw4rq1r617076/AADdUwNeNCz1bD50AgDNj9Jwa?dl=0
[1] White Man's Hut [12''] [ETERNAL - JF2T] [1983]
[2] A Gigantic Raft (Tempest Mix) [12''] [ETERNAL - JF4T] [1984]
[3] Fish Waltz [12'' ep] [ARK - DOVE 3] [1985]
Enjoy!
Jon