The header and intake flange that mounts to the head was cut from a single piece of 1/2" plate.  The entire plate was drilled for all the bolt holes and intake and exhaust ports, then split between each intake/exhaust interface.  This was done to assure the two flanges would be flat and match well.  The turbo header was built using pipe weld els (available at industrial hydraulic shops) and straight pieces of pipe.  This allowed a great deal of flexibility in exhaust routing in a very confined space.  The intake plenum was built using bent 1.5" tubing connecting to a 4" main chamber.  The length of the runners was calculated to be tuned around 2600 rpms.

These pictures show the turbo header being constructed on the bench using an old head.

Header, intake, and turbo installed with the wiring being laid out.

The tubes going forward from the turbo and throttle plate attach to the intercooler mounted in front of the radiator.

Underside shot to show how the turbo fits just above the steering shaft  Note that I had just found a major coolant leak at the time of the picture.  Also the size of the oil return from the turbo was increased to 5/8" since this picture.

Top view of the right side of the engine bay showing where the surge tank is located (galvanized cap).  Fuel is pumped from the main tank to the surge tank using the factory mechanical pump.  Fuel is then pumped from the surge tank to the fuel rail with a high pressure electric pump.

The intercooler is installed in front of the radiator.  A cross-over pipe was made to allow both the inlet and outlet of the intercooler to be on the left side.  The grill still fit over the intercooler, but needed to be trimmed.