Sal-
I have 8x10 Hose adapters.......
and 8x10 Tube adapters (They are NOT the same).
I also have M8 Tube x M14 Male and M10 tube x M16 Male, but would have to make an M10 x M14 Male adapter to connect this together.
Sal - Happy to discuss this if you email me. Cannot send photos by pm.
Len at Autosportengineering dot com