Jorge
As soon as we have a roof, the electricians will come.
Questions:
What kind of lighting you use? Considerations, electricity is way overpriced in this Island, so led's are in my mind, also fluorescent lights, but I am afflicted by vertigo and some fluorescent units really get me dizzy, so perhaps a combo of LED's and in fluorescent lights.

I will have both 220 and 110 circuits, the floor is the concrete slab and so that kind of rules out receptacles in the floor, walls or ceiling?