Once you have the parts, you'll need to assemble the panel and mount it to a backing plate, which you will need to make.
Then cut that annoying connector off the end of your separation cable, and solder it to the pins on the back of the panel.
After that, epoxy the solder connections and cable entry, add some type of mounting hardware. And you're done.

It's not an easy task, but a creative person with patience, a dremel tool and good soldering skills can accomplish this.

The most difficulty is in making the backing plate, and soldering the wires, as the wire is not very solder freindly.