Here's the script I use to autoadd items to the market.
It places all your deactivated items (except the ones inside sets) in the market for 1tc less than the cheapest item.
To use it, you'll need python 2.7 and requests. I won't answer how to install or run it, so don't bother asking.
You'll also need to make a file name config.py with your username and password inside it