modded the stock manifold to suit 44mm v-band ext gate, running either a tial mvr or turbosmart hyper gate
tbh, i think after all the costs add up, it will be about the same price if not cheaper than a HG unit fitted.
turbo with lines (can sell for $$ if not needed) $740
gate $300
modded manifold $220
dump + screamer $150
intake $150
= $1560~ (say $1650 for gaskets/bolts/nuts/studs etc)
HG turbo on its own is $1500 + delivery + custom intake + either use OEM lines (needs massaging to fit) or need braided stuff ($$), fk around with the dump/front pipe issue melting the aircon hose.