Hello Lotshorses
The brake cables are relatively easy to make up. The rear drums and brake shoes are like hens teeth. You're not going to find them unless you dig. Shoes can be re-lined. I haven't tried to find my rear wheel cylinders yet but I believe they are out there if you dig hard enough. Wheel base may be an issue if you swap the cab to the 1984 frame. Good luck and post some pictures - Joe
