no sweat mate, on your drawings of" Manuwai" in waikato style you may want to include the towing mast and engine frame extensions allowing two more rudders aft of the wheel, these were post 1928 mods when "Free Trader " was stripped down to a barge and was to be Manuwai's dedicated companion. Also she had staggered floats. This stopped wheel slap and vibration. And if Roderick reads this, the "Rawhiti" worked between Port Waikato and Hamilton, designed principaly for trans-shipping general freight from Port Waikato but also as a tug, I have seen her with up to 5 barges alongside.Manuwai also spent her final years as a push tug.