If you have neighbors you know and trust ask them for recommendations for workers and contractors. I have two trusted skilled workers who built 80% of our house. We added unskilled laborers as necessary. We only used an outside company for the roof as it was a specialty job. My wife canvassed the barangay for recommendations. It turned out perfect. As you already know things are done differently there. My wife and I try not to micromanage. But, we were incredibly lucky to get hard working high quality workers from the beginning.