any idea what type of front bar you want?
http://www.carmate.com/ is a good site for picking out the style of front bar you want, and then either purchase it through them, or someone i recommend, cowley smash repair in cannington.
alternatively, you can browse the for sale on the forums, someone may be selling a alternate GTT front bar, or even a GTR front bar, which are both an improvement on that *thing*.
PS. i thought they only came on the non turbo R34's? must be a option that almost no-one took