First I want to say thanks to all who have contributed to this thread. Over the last two months I was able to contact KOF and get the parts along with buying both the temperature remote and wall mount remote through Home Depot. I also wanted to share two things I figured out about the wall remote.
First, the new version of this remote does fit in standard decora wall plates. I picked up a standard leviton 2 gang plate (1 side toggle the other decora) and it fit perfect.
Second, I really didn’t like the idea of having to worry about batteries for this remote. It’s sitting in the wall, why the heck do I need batteries. As such I took the remote apart ( a couple screws) and pulled out the circuit board. I used a basic soldering iron and de-soldered the two battery contacts and then soldered in the postive and negative wires from a regulated power supply for 12v LEDs. I then notched the back of the remote so I could route the little wires through. I took the wires from the old switch along with the 120V wiring for the LED power supply and wire nutted it together with the load and line wires. This means the load wiring going to my fan is now always on and not controlled by a physical switch. It also means I can control the fan from the wall remote, smart things (I love Core), and Alexa without having to worry if someone accidentally flipped the old toggle switch.
Here is a link to the regulated power supply I have been using. It easily fit in the gang box behind the wall remote.
Rayhoo Indoor Lighting Low Voltage Transformers LED Driver Adapter LED Light Bulb Transformer DC 12V Regulated Power Supply AC 110-240V for LED Light Bulbs (0.5A 6W)
$7 with free Prime shipping