318 Engine/Trans for sale

Hey to everyone. Just joined tonight and I need help pricing a 318 Motor and trans. All rebuilt with powdercoated grey valve covers, intake, and air cleaner. It was rebuilt by a shop here in San Dego with all the standard stuff, .030 over nice cam, 340 valved installed, Manifod rebuilt carb, new headers, new water pump and so on. Also the auto trans is rebuilt. Help Whats it worth???? I just bought the car, its a 1974 Challenger so Im pretty sure its from that car. I have a ton of extra parts that I will be posting soon. I want to sell this stuff to fund my 4 speed conversion for the big block that came with the deal. Any help?
Thanks
Author: Topmill