My concern with internal gated housings is if there will be enough room between the engine and firewall/strut tower. I'm already pretty close with my external gated housing, but part of that can be manipulated with the manifold of course.
More pics...
This is something that really bugs me. My manifold came out with a 5 degree forward slant, although this pic makes it look worse than it is.
Here's how it turned out before I powdercoated everything black.
A couple problems I ran into were oil drain and coolant feed and return. For the coolant feed and return I had to go with a banjo fitting on both sides, and one side needed to be angled.
This is what the turbo drain needed, to be modified to angle out as soon as possible to avoid the line contacting the turbine housing at the flange.
Both of those problems could probably also been managed a little better with a different manifold too.