Factory 67-69 GM 12 bolt rearend housing

[MadMaxx]

So I'm going to be taking out my 12 bolt in my 69 Camaro and selling the housing empty. I bought a BMR rear torque arm kit and it comes with a Strange housing. I have no miles on the factory 12 bolt since it was assembled. I'm planning on using the posi and axles out of it which are not the factory guts that came in the 12 bolt originally.
Just looking to see what its worth. Will be listing it for sale in a month or two