What you see is what you will get. If you hook up two heater hoses to the copper pipes and 12 volts to the single red wire you should be able to get heat. These are brand new old stock components that have been laying around the shop for years. They are quite dusty and the headliner has some stains and the felt is coming loose on the headliner. I use spray adhesive to fix this.
The foam gasket between the heater box and your cab is coming loose and has a tear as shown. It will still work fine but I wanted it called out. Please do your own research. Has never been installed or used.