I'm pretty sure it still involves using the Tauros cuz the messages inside the Beldum area... Although i'm going to share something with you people:
Grab: A pokemon with Rock Smash and Strength, a pokemon with a status move (Paralysis or Sleep are the best ones), a glass canon (A pokemon that can one shot a Bouffalant, but it also dies easily to one) and some money to waste. Also, BALLS...
Even if Ame fixed the "Teleport" thing, there's one thing that remain:
This might happen:
Version 10.5 and everything... hell yes...
So if you already know the way, just go there...