Someone locally is selling a pair and I'm considering picking them up. If this is a good deal and I purchase them, would the Rocket RSC100 MKII be a good matching center channel? I can't afford the $599 RSC200 center. I'm thinking about doing a 3.1 setup to start with and maybe buy some surround speakers later on. Would the Rocket ELT-1 SW-10 sub be enough for a room either 10x12 with 10 foot ceilings and/or a 12x16 room with 10 foot ceilings? Any help is appreciated, thanks!