About 280cm is the widest I can go, since I need to leave some space at the sides for the side masking system. Also, there is some space behind the screen, but not in the full width of the room. So the separation between the L and R speakers is only about 185cm without building a false wall. But then my throw and seating distance will suffer. Grr..
Since my previous post I got a great deal (hopefully..) on a X30 (RS45) projector. Will pick it up wednesday. Possibly later also an ISCO-ii, but I`m not sure it will be compatible with the recessed lens of the X30? I did a quick search, and at least I found a German that use a ISCO-ii with a X30. Seems that he was ok, but my German isn`t that great..