What is best way to pass on immovable property to wife son and daughter

I want to make will where in i want that after my death both my immovable and movable property is to be distributed as under. 1. My flat is in my single name. I want that after my death my flat shall be transferred in joint names of my wife, son and daughter who are only my legal heirs and their share shall be as under. My wife 80% My son 10% My daughter 10%. 2. In case they deside to sale property then sales proceeds shall be distributed as under. My wife 80% My son 10% My daughter 10% 3.In case of death of my wife, if my son and daughter wants to sale the flat then sales proceeds shall be distributed equally on 50%-50% basis. 4. During life tenure of my wife, if they want to let out my flat then rent income shall be distributed as under. My wife 80% My son 10% My daughter 10% 5. In case of death of my wife, if my son and daughter wants to let out my flat then rent income shall be distributed equally on 500%-50% basis. Can such will be made? Would my said legal heirs require "Pedhi Namu" in addition to probate for mutation as i am from Gujarat.?