Eb,
Looking at the hutch..... is possible to mount the blocks on the outer sides of the hutch since it is made fast and looks strong...As far as I can would isee the far end of the boat might be too far aft to mount the controls of blocks or a raised traveler....The lines would come up at an angle and could rub the hutch.....I once looked hard at installing the traveler on my older Ariel in the cockpit...about 12 inches back from the drop boards.....I finally decided it would be too busy in close when working the sheets....As far as the vang goes. I use it to steady the down wind and reaching legs....keeps steady pressure and dosen't rise and fall like line vangs....Going up wind it can help flatten the main...When its light I keep it loose....I would like to visit some day to see the boat...Joe