Hey William,
I'm running the same kit that you have, and I just pulled my engine, so if you'd like to take a gander at how it all goes together, you're welcome to swing by, but make it quick, because I'm tearing the engine down in a day or two.
If you like the way these gauges look, I can give you a hand modifying your cluster to incorporate VDO's, and boost gauge, gauge panel, and Profec S are for sale.
Here's a few pics, and links to some albums.
Engine removal & turbo kit install
Miata Gauges
C