Upgrading from a Phillips system that everything came included. First time "building" my own system.\n\nI am on a budget of $1500 but going to buy items separately.\n\n1. 5.2.2 receiver would just be a 7.2 receiver?\n2. Should I found speakers first then a receiver?\n3. It's a small living room with 8ft ceilings. I would prefer a freestanding tower with upfiring speakers built it. Any suggestions on those and would it still be a single channel or count as 2 channels?