Ok, it definitely seems to work for me

Click image for larger version.  Name: plan1.pdf  Views: 159  Size: 29.7 KB  ID: 17634Click image for larger version.  Name: plan2.pdf  Views: 138  Size: 29.7 KB  ID: 17635

Assembly would be to screw the x axis support plates on at the bottom and middle positions, then there is just enough clearance to pass the screws from the back to the front to mount the Z axis carriages, bottom line is tight but room should be ok.