Wait, you spent $400 on just the mini split unit itself? That seems crazy low for a Mitsubishi. Every quote I got for one of those was well over a grand, and that was before install. Are you talking about one of those little DIY ones from a big box store, or did you find some crazy deal somewhere? I'm honestly trying to figure out how you pulled that off because I've been wanting to cool my garage for years. If they're really that cheap I might finally do it.