please kindly furnish me with the best dimensional measurement of the attached and win this contract

3 bedrooms on a plot of 120 by 60 Land
What is the best measurement in dimension for the above as follows:
Sitting room
Dinning
Kitchen
Passage
General toilet / bath
Bedrooms
Master bedrooms and the toilet
ALSO PLEASE WHAT SHOULD THE DIMENTION OF THE WHOLE BUILDING BE AMIDST THE SIZE OF THE LAND.
WHAT IS THE COST FROM FOUNDATION TO ROOFING? With cost of materials

NOTE A thorough job could attract patronage