Looks like the engine is in very nice condition. I wonder why it has a red shroud. Maybe a previous owner rebuilt the engine to 'S' or 'RS' specs? That would be nice.
If you are looking for parts I would recommend putting a 'Want to buy' ad in the Pelican classified section and also on the Early S Registry forum. Here is a link.
For Sale/Wanted: 911 Parts
Porsche 911 Used Parts For Sale & Wanted - Pelican Parts Technical BBS