Yes, to all of that. Apparently you weren't around 15 years ago when startups pretty much had to do that if they wanted servers and an internet presence. I live

Yes, to all of that. Apparently you weren't around 15 years ago when startups pretty much had to do that if they wanted servers and an internet presence. I lived through a startup during that era and that exactly what we did. We had our fancy ISDN line and could server our web site to the world at a blistering 128K baud. We bought a $300 air conditioner from Home Depot, cut a whole in the server room door with a sawzall and installed the air conditioner. Ok technically we only used the air conditioner in that configuration on the weekends when there was a human in the room and the main building air was off (we couldn't override it) but I like that story. You're not going to get 5 nines this way, but you would be surprised at how much you can do, even when there exactly zero dedicated sysadmins.