Build estimate?

Hi, i would like to build on my plot in bahria town. Could you please provide an estimate for the build cost for the following details. 7 marla corner plot in phase 8 rawalpindi bahria town. I have all drawings approved. I would like 2 cost options please, both grade a finish; 1) for grey build, 2) for full build including fixtures and fittings. Also how long would it take. Many thanks, sajid.