Frank Church wrote in
9.11:
FWIW, in the past I have used a 10# mushroom anchor off the front of the
pontoon boat. *Never* anchor over the side, that's asking for a dunking.
If I recall your pictures, you have a rear anchor system which is fine
too..I just don't know how you can reach around and bring the anchor up
without straining something important. 
The whole rig is setup to pull the rope up from the left side of the seat,
pulleys and a locking device all right there...
Flyfish