double pocket door
Like ralphfravel said, you will be losing a lot of wall with pocket doors in them (can give troubles hanging cabinets, pictures, tough to get electrical through, etc.) Plus, with a 5-0ish r/o, you will have to open the walls to get two doors to fit(pocket doors go into the wall as far as they come out of it, plus a bit for the frame). for a 5-0 opening, you need to 2-6 doors, plus around 2-8 on each side for the pocket door frames, meaning you need a r/o of 10-4ish to make it work. Depending on the area in your home, that can be a LOT of demo work, moving electrical, may even find an air duct or water pipe in the way that would need to be moved.