I would probably sell the half of it, or maybe 3/4 part. So that way I could pay to build my house
If you are using btc you have to make your life better, then it's the most fun. But if it turns around, then it's a very bad thing indeed. Better to use the btc for investment rather than having to do something that has no benefits. You are indeed very smart in making plans, but I hope you are using the rest of your btc disposable for use in something which can fold duplicate btc you have such as trading, investment, etc.