Still on Aliexpress. There's an offset MPS manifold with pictures of a K04 attached that has caused me to reassess.
Manifold Only - $215AUD shipped
Manifold+ K04 $790AUD shipped - now this one is worth looking at because it gives you a view that shows how much space you have between the turbo and the block. And yes, I am aware that I should not buy a turbo from China...
This one includes all the above plus a dump pipe - $875 AUD shipped.
I'm now curious to see some closer pictures of an MPS engine and how the intercooler piping is routed.
One thing I do note from the images of the STT500 above - the location between the block and the firewall with a centralised manifold was abandoned because of problems routing piping. In one picture you can see how the rear engine mount is a serious impediment to the dump pipe. The MPS offset would solve this. But the downward facing cold-side outlet would likely foul on the gearbox if offset further.
I wish I could link to the Aliexpress images but I haven't found a way yet.
Lukeyson