I'm in the process of having a 360 built in my basement. Why? Because my door frames won't allow me to just carry one in, lol. Tank measurements will be 8x3x2.
FYI, I'll more than likely pull the 180 on the left back and have the corners of the two tanks meet. That way, I'll probably skirt the 2 tanks together. Hopefully it looks like the two tanks will be one.