If you followed the thread, there are so many tools to evaluate! I remember when I was solving a mathematical equation and was not able to reduce it, it was always because I did something wrong at some time. I feel the same now, and probably Hitch is right (once more). I need a break, calm down the stress, and reach a higher level of reflexion. I know where I am, where I want to go, the journey between both is not yet 100% clear.
I thank you for your offer. Maybe I will start evaluating your tool later on. In the meantime maybe you have a test case with a .docx and the resulting .epub you would like to share?