Yep the plumbing should be dead easy to get to. If it's copper you only have to cut out two small sections of pipe for hot and cold, tee off from there and connect to a faucet. Use a ball valve on each supply somewhere so you can shut this water off separately if needed.
As far as the room goes you only need blackout material to make it light tight. However, you might need to add a vent because after blacking out you'll cut down on room venting.
I recommend the delta 96" abs sink.