The next step is to dissemble everything. Here is the HD controller, all in pieces.
This is the FD 2000 broken down and ready for the mod.
The C=128CDR disassembled.
These ribs need to be trimmed back to make room for the FD 2000 drive and control panel.
The Zip drive and the controller PCB for the HD controller don't fit. It's close and may be made to work by shaving some off the controller PCB and the inside of the D's face.
Not my first choice. But I have an better solution.
The two drives; the Zip and the floppy, fit well together.
The two PCB boards also play well together.
This is a mock up of what it will look like. Best part: it completely covers the '71 hole.