We did our own for years. I do not have pics anymore. Build a well insulated building maybe 4x8, just a big enough to hold 4 quarters without them touching eachother or the sides. Put in a window air-conditioner. You can buy a little computer that will make the AC get into the high 30s. A meat bandsaw, a grinder, big plastic cutting boards, various good knives, big stainless bowls and .plenty of bleach.
We didn't butcher until the temperature dropped in the fall. By then it is pretty wet here. You have to keep air moving over the meat. Keep an eye on it. We would wipe the carcass down with vinegar water every few days and we could hang over 20 days. It was the right flavor, tenderness, moisture content for me starting at 16 days. Make sure to blast out the inside of the shed with bleach water before and after and then make sure it is dry. When butcher season is over and all the equipment is thoroughly cleaned put it all up in the hanging shed.
We would get 2-3 families together and butcher hang cut and wrap, move on to the next one as soon as the previous was all finished up.
It was always a good time.
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