I find it interesting have different these units can be. Mine has a solid dash with a tilt-up engine shroud but the one in the video does not.

I am not sure what to say about finding parts for the emergency brake. As bad as the brakes are on this model I do think that it would be good to have the backup. I think finding parts will be difficult. You could buy my truck if you are really into this, I have not sold it yet. Finding a scrap unit would be the other options but there are so many flavors of these trucks under the same model number, it is hard to know what you would be getting. Hopefully the brake parts are the same. I think they are from what I was seeing in the service manuals.

I was able to find pads and seals for my truck so maintenance items are still available. The emergency brake cables just actuate a mechanical linkage against the drum. If you don't have any of that, it will be tough to fabricate but not impossible.

The brakes on these units are so frustrating I could see someone taking maters into their own hands and trying to fabricate something better. The lack of a tightener for the drums is a huge frustration with this design. I could never get them to work as I expected.