Make sure the RAM kit you're getting is a 2x4gb kit. This way, it won't take up all your dimm slots and you'll have room to upgrade in the future.
What's your budget? I may be able to come up with something better. Also, do you need an OS. Do you already have parts that you can reuse such as a spare HDD?
Around//900$...but the thing is..there not many options available here in India..if available very costly...