What's it worth please! A body 8 3/4

The sure grip in my area alone is 5-600 being a 741 case and the housing with axels 4-500 . These are getting quite scarce and I recommend just keeping it.
I have two diff's. One in my car with 3.91 sure grip which I'm converting to LBP and 10x2.5" brakes and a spare. So I guess I'll actually have 4 SBP axles but I will keep two of those and the original backing plates in case I ever sell the car and someone wants the original stuff.