I did all of Rome Sears contract installs in the late 80s and early 90s, including dishwashers. Takes about 30-45 minutes give or take. Not a big deal, just 2 mounting screws, compression fitting, couple of wire nuts, ground screw, and drain connection. Like @BamaFan wrote, watch a few YouTube videos, and PM @jeff1012 or me if needed. Probably costs $200+ for labor these days.