Thanks for the pointer to your website.

I've based my plans on looking at the various methods used by other people, mostly on the Yahoo mini-mill groups.
The Y axis mounts are based on a design from Chris at the Little Machine Shop. The X axis - I'm not sure.
As I will be removing the display from the scales which makes the read head smaller, there's a bit more flexibility as to how I mount them.
I'm not sure if my setup will be practical as I haven't yet tried tested with the axis locking level to see if it gets in the way.
Still, I've lots of spare time and lots of little bits of aluminium.