Skipper Bob's which you have is very good My books are on the boat now Claiborne Young's book, and the Waterway Guideof the Northern Gulf have information also. There aren't many Marinas West of Lake Pontchartrain. Houma has city docks with power and water $25.00 per night. Morgan City has docks, I believe for free. There are places to anchor or tie up every 50- 60 miles or so.
Post again when the time is closer if you want more information, If you check www.charlesculotta.com
you'll find he has quite a bit of information about the area on his site.