The very easiest way to put your receptacle in is to do as RickN said. Less wire and don't have crawl in the attic. If the freezer will fit beneath the panel or near, drop the 3 way wire beneath the panel, cut your receptacle hole about 1-18" from the floor or where you like. It's easy.
Write down or take a photo of the name of the panel. Cuttler-Hammer, GE, etc because you'll need a breaker for your particular box/panel.
Write down or take a photo of the name of the panel. Cuttler-Hammer, GE, etc because you'll need a breaker for your particular box/panel.