Already fitted Gt3040 to Standard manifold, how ever you will have to make a riser plate about 40mm thick in t3 flange pattern to space the turbo away from the engine otherwise the front cover will touch the block. and this will also allow you to tap in a 38mm waste gate line. It was a pretty easy process, but car only made 245 rwkw due to the design of the nissan exhaust manifold.( logger type non tubular.)
Check out GCG range of low Mount manifolds in stainless, as they are good for the money. and come with external gate line.
Cya 33