re: DIY (or minimal professional help) Mini Split Installation: Brands/Types... Advice wanted

One more you might want to look at, I'm researching the signature solar EG4 12 and 24k mini split kits that run on solar or grid. They have a neat setup, you run solar panel strings directly to it as well as the grid supply. It prioritizes the solar panels and will only draw from the grid what is needed. I'm intending to put this on my barndo great room and will circulate air with the central system fan.