Rear 8 3/4 10" SBP Drums, backing plate, shoes, hardware

Is everything there on the hardware to just bolt it all onto a rear end and have a functional system? If not, what is missing? Pic doesn't show much detail on what all is there for springs, bolts, clips, etc. I have an extra rear that has axles but nothing for backing plates and hubs that I'd like to build up so I can just swap it in.