To the Outer Lands The Fast Way.
1. Create normal world with cheats.
2. Find the eldritch obelisk. (Floating pylon over small Obsidian platform with capstones.)
3. Use command /tc research <player> all
4. Pull these items from creative tab:
5. Use all four eyes on the capstone under floating obelisk.
6. Use a scepter on the same capstone.
7. Step through opened portal into the Outer Lands.