Thanks @mxg and @bradstopher99 ! Printed mine today… the hinge was perfect, but my printer bodged the body slightly… nothing a sharp knife+mini file couldn’t fix 
I wanted to put them in upside down, but I think there is a small offset from center which prevents all of them from going in. Might print the body again at 101% scaling.
Thanks again for the designs saved me serious procrastination time 