U dont need an inlet manifold, just shorten/ re-route ur pipes, someones done it on some thead, my shopping list for now:
Z32 -$150 and up
Siemens dekka 60lb top feed high impedance injectors-ebay only round $280, spacers and EV1 plug convertors separate
Turbosmart CompGate 40 - round $330
TD06SL2-20G 10cm kit - $750
Misc plumbing, gaskets, elbows, bits, pipes- $100..
Still comes out ok if u shop around and have a gud fabricator too..
But as of yet i can only sit n wish for another three months till i get my licence back from darlings NSW RTA..