Brand new genuine Garrett GT3076Rhttp://www.nzperform...ewCat&Submit=Go
with the exchange rate it would be less than the GCG highflow even with postage. You can run the wastegate directly off the exhaust housing and plumb it back into your dump. It will easy make 300kw at 20 psi but you will need a wastegate, injectors, z32afm and a nistune. Stock manifolds will be fine although you may need a 10mm spacer for the turbo.
And just as an aside - our local turbo guru prefers bush bearings! -Says they are more reliable and much cheaper to rebuild.