hi not sure if anyone created this but i just finished this one. its a spreadsheet that you just punch in the amount of the item you have/want (its highlighted in yellow for your convenience ) and it shows how much it will cost/your resell value and at the bottom it will have the grand total enjoyhttps://docs.google.com/file/d/0B9A5bEv_rD-gcUJRdjlLd2dtN0U/edit?usp=sharing