Installing a mini split yourself can save money, but it takes careful planning....
https://www.coast-bookmarks.win/thinking-of-installing-a-mini-split-yourself-i-ll-walk-you-through-the-basics
Installing a mini split yourself can save money, but it takes careful planning. In this article, I walk you through drilling the right 3-3.5 inch hole through your wall without damaging wiring or pipes