Sup Insanity. I thought this looked like a bit of fun so I decided to code up some python to work this out for you.
Here's a small example of what the output looks like with the code partially finished running on your inventory. It writes to a txt document and each line has information about each item you have on the market.
It tells you how many are owned by you, the status of the item (whether that type of item is already in the mark, or if not then if it is in the shop or if neither then that you can put it up for however much you want), the item name, the item price, and the total value from selling all of that type of item at the prescribed price.
At the end of the document you also get a summary of what the market value is for your items if all of them sell at the prescribed price.
The only limitation it suffers is that it takes a while to run due to the 1 second usage limit on loading the market. I have it set to 1.2 seconds to be safe at the moment. It's currently running and calculating and should be done before too long. If this is something you're interested in calculating frequently then this is definitely the most efficient way of doing it.
Also at the moment it will only check for items in your market inventory and will not pay attention to sets in your market inventory (you only have one with one cheap item in so it's no big deal) or your active/deactivated inventory at all.
If you're keen to buy the final figure then I'd say this is the most reliable you'll get. And if you would like to buy the script itself then feel free to shoot me a pm and we can work out something.
Also if anyone is keen to working with me to build a python library around the Toribash API then hit me up. Hopefully I'll have something simple up on GitHub soon and we can go from there.
Edit: Finished running. Had to start it again after I accidentally stopped it. By my count Timmy is way off but up to you what to do. I'll jump on in the morning and see what's up.
Last edited by Solax; Sep 16, 2015 at 03:45 PM.