All,
I've machined the T-Top hinges and have produced a drawing and an .stl file.
All I need before I release the drawing and the "printable" or "machinable" file is to have have someone measure
the locations of the 2 T-Top mounting holes and verify the original threads size.
To date I have not seen an original hinge. Things would have been easier if I had one.
Believe it or not I prototyped the hinges by printing the hinges using ASA plastic on a 3D printer ... They might just work in the plastic form.