I may be able to help. I have a full chart book #14786 Recreational Charts published by NOAA; 11th Edition, and never used. Also have lot's of materials on all canals from NYS Thruway. Looks like I recieved everything in 1999. Back then I was boating in lower Hudson River in a Sea Ray and was planning on going thru the canal's; Never made it.
Now sailing on the Sound so I will never use any of these charts. Let me know if you still are in need, I know it's well past August.
Bon Voyage