Hello fellow countryman,

The maststep hinges are for all prindles the same: https://www.murrays.com/product/56-6815/

I will look on my loft if I have have still one and give you the measures.
But why don't you take the measures from the mastbase casting and make a model from cardboard or wood. And make then one from St 316.

groetjes

ronald
RAIDER-15 (homebuilt)

hey boy, what did you do over there, alone far out at sea?..
"huh....., that's the only place where I'm happy, sir.