Full race manifold very nice, but very overpriced. Raw brokerage one nice too, but again expensive.
The mass produced design, materials and a couple of hours to tig it in a jig is not very good justification for those ridiculous prices. Just my 2 cents.
Bobby in "r34 build" thread had one done from scratch as a 1 off designed and hand built by John Skola for 12k.