I recently bought the 84-inch 4K Bravia, but no home theater or anything, just the free Blu-ray system. I was thinking of getting an 11.1 system but I don't know which brand can provide the best of that. I also have 2 components laying around and was wondering if I could use them too. Is it also possible to set it up like a cinema? With over-head speakers? My budget is good, but not so much. I was thinking something below 5K USD. Help is needed, thanks in advance!