Carefully break the edges off the PCB
Prepare your switches and install them in the plate
Install the PCB mount stabilizers before you start soldering the switches
Mate the switches with the PCB and make sure everything is laying flat
Solder a few switches to hold it together and check again that everything is correct
Install the LEDs and make sure they are in the correct direction before you solder and snip the leads.
If you aren't using the plate, you have to install the standoffs in the bottom case, seems easy to figure out.
If you are using the plate you have to choose if you want to mount it to the top case or bottom case. I chose the bottom case.
Hope I didn't forget anything....
Also if you want to program it you need a kbdmania account.