$5000 but land in Hawaii is way expensive. I made a small personal loan for the balance that I will pay off this year. Spend about $200 to get Ryobi tool set. Spend about 2k for a cabin materials. 8x8 with lean to roof. Easy to build. Cleared drveway by hand to save money. $200 for a good tent to live in while you build. We also ate one meal a day for months so we can stockpile food without spending more money.