I have a manifold made from steam pipe (made in USA) that was going to go on my kit car, but now it is not. It does not have a mount on it (for the turbo that is), so it can be made to mount any turbo and add an external gate port if needed.
It would mount the turbo in almost the original spot (so it is not equal length headers), but is pretty good.
It is a great starting point and will be heaps cheaper that getting a custom made one from scratch.
PM me you email address and I'll take some pics of it tonight at home.