I've been busy the past few weeks, so unfortunately not too much progress.

I designed some simple 3d printed, easily adjustable mounts for the homing sensors.
On X and Y they will be triggered by the DSG housings. On Z, I'll add a small bracket to trigger the sensor.
Click image for larger version.  Name: HomeSwitch_X.png  Views: 138  Size: 224.9 KB  ID: 30091Click image for larger version.  Name: HomeSwitch_Y.png  Views: 131  Size: 331.1 KB  ID: 30092Click image for larger version.  Name: HomeSwitch_Z.png  Views: 142  Size: 206.0 KB  ID: 30093

Detachable Gantry:
Click image for larger version.  Name: Detach_1.png  Views: 134  Size: 473.4 KB  ID: 30094Click image for larger version.  Name: Detach_2.png  Views: 134  Size: 461.9 KB  ID: 30095