Your setup looks good, but your location in the garage leaves much to be desired, unless it has it's own climate controls. I tried reloading in a garage once. It was unbearably hot in August, froze you nuts in off in January, and powder once opened was affected by the uncontrolled humidity, and uncoated steel , like dies & shell holders had a tendency to rust.
Sometimes it's the best you can do, so I understand.