would you be able to give me a rough idea of cost per square meter for small houses in Isaan province using your system?
On the web site there are 2 buildings which have materials lists (aka bill of materials) that you can review and compare to the size. Roughly figure 2000 baht/m^2 This does not include labor. The cost per square meter will depend a lot on the finishing: window type, tiled floor? ceiling? etc.
Please let me know if you need more information.