This thread started on a fine line, and I believe that line has been crossed. This forum exists to help electricians and engineers in their job-related tasks use the NEC in their professional duties. It is not a dispensary for DIY and How-To advice for people outside the profession, even if they are "thinking about maybe doing this full time some day."
Just because you claim to be in Ecuador, and as far as permits, licenses and codes all bets are off, does not change our minimum standard that if you ask for advice here you at the very least be in apprenticeship under a competent journeyman or master electrician. Ostensibly you are going it alone in this venture, doing it yourself, which on our end means you are on your own.
Good luck in your project.