Coasts aren't the only mapping opportunities, but they are more superficially compelling and perhaps will help make entry into the project easier. For this project I think they are worthwhile to maximize a little.

I also like the long islands and would be happy to include them. Here is where I am at right now:
Click image for larger version. 

Name:	New Co-op proposal Edit1.jpg 
Views:	85 
Size:	859.6 KB 
ID:	66328