I looked at at it in person yesterday and it was wider than I remember it so I believe it will work out ok. In my current set up, even though I have the room, my side surrounds are right at each end of the sofa and it sounds great. That's a lot closer than they will be in the new house .
I am just trying to decide if I am going to upgrade to another pair of LSI15s for the surrounds or the LSIfx to hang on the walls. I am going to have to get some kind of bookshelf/floorstanders for the rears unless I build out a separate room. That is looking less likely to happen. That two car garage is sure tempting though...