Welcome to the forums, I look forward to hearing more from you.
Slixx decals carries a line of paints called Black Gold/House of Kolor. Their paint for little E is SG10501 Blue Blood. The spray can is SG105S. www.slixx.com . Also try Model Car World http://ourworld.cs.com/mcwautofinishes/
As far as reference material goes I have a couple of sources. I have two books that I feel are invaluable they are: Stock Car Race Shop, Design and Construction of a NASCAR Stock Car. The other is Race Fans Reference Guide, Inside Winston Cup Racing. Both are written by William Burt. These books are a few years old (the second is now out of print) but they are still very helpful.
I also use the Technical Info link at Modern Motorsports website. They have lots of diagrams for complete wiring and plumbing of the engine and entire car ( all makes currently running ). http://www.angelfire.com/nj4/mm0/tech.html
My other source is driver and team websites. There is no one jackpot of pictures, but most sites have a couple of useful pics.
Darren