42rh/a500 tranny value....

I've got a 91 Dakota with a magnum v6 and a500. I drove the truck to my house. MY brother bought this truck new and its been in the family since. I have decided to part it out. The tranny is the one with the dash button to engage/disengage the od. There is absolutely nothing wrong with the tranny
and it would include ALL the bits and supporting items. What I need is a starting price to ask. Yes, it will work behind a small block, I believe the magnum v6 is a magnum 318 with 2 cylinders lopped off