[dlbass93]

Welcome, nice project!
When you are looking for parts, Roger at 928sRus has been great, I recommend giving him a chance. Pelican also has a lot of parts. Most parts have a long number stamped in them and you can use that to search Pelican for the part. Or, you can give Roger a description of what you need and he seems to be great at helping you find it.

I haven't bought it yet, but the guys have been recommending the Morehouse CD from Roger that has all the diagrams you could ever want included in it.
For now I have been using the following places for diagrams:

Manuals - Porsche
PORSCHE 928 FACTORY SERVICE MANUALS AND WIRING DIAGRAMS
Porsche Original Parts Catalogue - Parts and Diagnostic Information - Porsche Service - Dr. Ing. h.c. F. Porsche AG