I'm doing profits by hand. It's a pain, but the number of transactions is low enough that it only takes a few minutes per day. Not sustainable in the long run, but okay for getting a baseline.
At the time of writing I've made a massive 133.6 million isk in profits, not counting any transactions from the 1st and the 2nd because of the attack. If this keeps up it will come to an utterly mind-boggling 570m/mo.
Which might be worth the effort, actually. We'll see how it goes; right now the data set is excessively small.