@ Irfan bhai!
I am not too sure about the capacity. Will check for you in detail today. but what worries me is the line written on the box "Inverter with charger".
by the way I at home i am using a local made, and so far it is working fine.
about the prices, well in Karachi a 750-1000 one is still available for about 6500-7000 but scene over here and even in Lahore is very different. a 1000watts starts from 11000-13000.
also, on your way back grab a battery or two. the one used in tanks would be best cuz finding a UPS is much easier than find batteries for it.