I wanted to reduce as much light path as possible so i wanted to connect my Denkmeier Binotron 27 directly to the Williams Optics diagonal by removing parts 'C' & 'D' and connecting 'A' directly to the Bino.
http://i39.tinypic.com/20ji7au.jpg
First i removed the side plates and drilled and taped a M4 thread in the both sides of the diagonal and installed 2 thumb screws.
http://i39.tinypic.com/10gy2l4.jpg
Then i took the nose piece 'C' in the first photo and machined it with a taper that would fit the diagonal where the eyepiece adapter was.
http://i43.tinypic.com/qyep6x.jpg
Diagonal with the thumb screws and the new nose piece installed.
http://i39.tinypic.com/2yoyfs1.jpg
Ready to connect all the pieces.
http://i43.tinypic.com/29p8dhe.jpg
New nose piece screwed into the Denkmeier Binotron 27
http://i39.tinypic.com/14c7itt.jpg
Finished
http://i43.tinypic.com/2zhr5o1.jpg
Now i am impatiently waiting for a Baader Zeiss T2 1.25" diagonal to reduce the light path even further.