I went and redesigned the Backdrop as to make it thinner and make sure the holes line up with the connectors. I will have to go and make an instructional PDF and upload it.
I added a four holes in the center of the Backdrop to make sure it was nice and tight. I also included the Riser and Sled needed to add this to to the FABSCAN design by CEB.
The Rods are 390mm each. It worked great!
I noticed I had two pieces missing: Bottom left and the Right Connector which I have now uploaded as well. Sorry for the inconvenience.