Add me to the list of people interested in this design. The Ceramica would also be a possible choice for me. When you get these finished it would be interesting to hear your take on the differences in the sound of the two models. For my application I think I need to go subwooferless, and use the speakers for movies as well as music. Based on the bass measurement, it appears that Vigore might suit my needs better.
Haven't heard the Be tweeter, and I guess part of the reason you are using it is to save real estate to have a smaller box, but I love the Raal 70x20 in my Grandeur's. Would the Vigor with the Raal tweeter of the Ceramica be possible?