Just bought a small house for rental and the whole place needs decorating. All ceilings and walls need painting so hence the question. Can I use say one of the pump up spray systems that you use on garden fence paint? Would it work with say Dulux brilliant white, so do all the ceilings first then all the walls with it tinted down to magnolia? Don't plan to spend a fortune on professional spray kit, anyone know if it'd work OK?