The B&W LCR option I would probably go another direction, but the biggest one I would do different is the sub.
Understanding you're in India...see if anyone has Monitor Audio...if so, the Silver series imo will perform as well or better than the B&W 600 series. Tannoy is another brand you should look into.
Martin Logan Motion 40...smaller brother of the Motion 60, but imo a better speaker.
Unfortunately I'm not sure what sub manufacturers you have access to, but it would be a shame to see you pay that for the B&W sub.