Dear brother Akh,
I would suggest that you try to locate a one kanal plot in E-17/3 (Cabinet). Your budget is slightly tight for one kanal but you can find if u try. May be you can add 1-2 Lacs and get good location.
Any way E-17/3 is the only place inside Islamabad Capital Territory where you will find one kanal in your budget. It has decent development standards completed by Habib Rafiq. This society is closer to main Islamabad as compared to B-17 e block which is not even inside Islamabad territory.
All other societies near E-17/3 are priced much higher and next year a good jump is expected in cabinet because its price is below its worth and value.
It is ready for possession and u can build straight away. Water is through self boring but that is also the same case in other societies of zone 2. Water and gas may be started if CDA provides in 2-3 years hopefully. The same as in other societies except jkchs.