After 2-1/2 months process, got the residency visa. The procedure is long than expedited, but result is good. And took one day to get the cedula in Guayaquil, just need the document from visa officer($4) and copy of passport & visa, after took photo and finger print, took 2 hours and cost $5. I heard it need 2 days before.
The 2nd plan is build a simple house nearby coast. What I want in mind is simple, sustainable, and cheap. The material is bamboo and concrete, site area is about 100m2, 2-storey house will look like this:
The Framework is concrete,
The 1st story is open kitchen, dinning room, living room, with a bath room. The floor is concrete tile, wall is half, made by bamboo, with plant green. Need a ceiling to dust-proof, not sure the material, as the 2nd floor is wood.
The 2nd story is divided with 3 or 4 rooms, with corridor/balcony and a bath room, no shower. The floor is wood, the others, wall, roof is bamboo.
Using natural lighting for the kitchen: soda bottle light, and mirror(light shelves).
About water-proof for the 2nd story bath room, not sure the material.