Nothing is impossible. The problem you are facing though is that activating the right lamp is only the beginning of the story. There are a lot of other things to take care of — so it is unlikely that your efforts of reverse engineering will pay off.
As to the tips about this scanner twain problems, I don’t think there is anything really serious I am aware of, but if you have trouble with a particular part of the twain flow, I would gladly answer your questions.