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Starboard hand rail:
These could be used on many Hunters, and frankly I am surprised Hunter do not offer them as standard, as they are very handy!
Sorry, I didnt take any photos whilst I was building them, but a good stainless fabricator could emulate them.
They are fitted via bolts that go through the hatch rail cover from behind (removing the stainless covers is quiet easy). The lower bolt is threaded directly into the glass fibre.