RE: 85 ft Harbor Tug/Angels Gate
That's a great rendition of Francis Smith's plan. I would echo Tug's comment about trying the build yourself. Doing so will let you experience the deep satisfaction your dad enjoyed and will create a bond that you will treasure. And, you will have a pair of tugs to leave for your children.
If you decide you really want to tackle the hull (I highly recommend it), I will make you an offer....a straight up trade for a full size set (three sheets) of Francis Smith Plans for a good photocopy of the original magazine you have.
Pictures of my " Angel's Gate II" are in my gallery.
Cheers
Keith.