Given the complexity of the scoring I thought it could be good to have a web page that both acts as a calculator and explains the points. I took a quick stab at the calculator portion using some ideas from the Excel calculator posted by otherguy.
http://recyclerush.org/calculator.html
I plan to do more testing and add in the explanation part but also wanted to post a first draft to get feedback from other people. Let me know if you find mistakes or have suggestions. Note that all calculation is done locally using javascript.