I found a set of 70 Drum spindles from an E-body and they are on the way. I'm going to start building up a set of these brakes to replace my pin calipers eventually.
I'm hoping that it's more than enough brake for what I want to do. Without Cass building more of the 14" viper kits, I can't do much else aside from Wilwood and I'd rather give him the business.