Another question, can this be done (I mean setting up as my “reloading room”) in my uninsulated garage, or do I need to think about doing it inside? I’m thinking about hot/cold and humidity in the garage.
It can be done in a garage. That's where I do all of my reloading EXCEPT throwing powder charges. Powder work is always done at the bar in the kitchen.
What are you wanting to start reloading for? Have you already started buying equipment?