Hi Garry,
Welcome to the wonderful world of card modeling. I build in plastic and paper.
A very good place for a beginner to find information on card modeling is from Ralph Currell Graphics. If you have a printer the very excellent models are free. He has all skill levels , all free. He also has links to other very good card modeling sites. Also look at Fiddlersgreen.net they have lots of good information as well as free models. I just finished a model of the GEE Bee racing plane from the 1930's. It was free from Fiddlersgreen. They also now have a free X-15. Very nice.
One of the things I like about card models is the multitude of subjects offered. Everything from a jet fighter to a Violin. A very large number of them are free. even the high skill level ones with many parts.
I know the Digital Navy model you mentioned and at this time it is a tad above my skill level.
May I suggest holding that ship in reserve for now and working on some of these easier but very nice free models. Books are good to assist in technique but you really have to get your fingers in it .
I have been working paper for about a year now and my skill level has improved with each model. Some of them even look good.
Let me know if I can help in any way.
The areas mentioned are: www.currell graphics.com www.Fiddlersgreen.net