2.8 GU Intake manifold

The other day I went down to Gold Coast 4x4 wreckers and bought an intercooler from a 2.8 GU, to my surprise they only stung me $220 for it witch I thought wasn't to bad.
Got it home and mounted it witch was all good then come the fun part plumbing it up to the GQ intake manifold. After about 4 hours and a lot of bad words it was all good.
Took it for a drive to find a massive power loss, I am pretty sure its due to all the bends in the pipe work.
So since I have put it back the way it was and all is good again.
Now my dilemma is I can't find an intake manifold from a 2.8 GU, I have tried all local wreckers and they all tell me the same thing (we havn't had a 2.8 GU in a long time).
Does anyone here have an idea where I can find one I have put a listing in the wanted section but I know not everyone checks that. So any help would be appreciated.