Well done Kim.
Omegacrux (David) did the same mod with an eq5 some years ago but never posted it. I have since acquired his eq5 head and converted it to a permanent Alt-Az, as can be seen below.
They are very nice to use in an Alt-Az configuration, and don't struggle and slip to gain altitude past 45deg like the Skywatcher Alt-Az does with an ED80.
http://www.iceinspace.com.au/forum/s...d.php?t=125165
Trevor