I saw this posted yesterday from fighter, Paul Kelly (I think he's the cameraman), who now trains with team Kaobon in Liverpool. It's his teammate Paul Sass' version of an Anthony Pettis-like wall walk to triangle. And, it's insane.
If you have a cage in your gym or there's one within driving distance from you house (i.e., your parents' house), then go to it now and drill this. You'll probably fall down a lot and you may get hurt in the process. But it will be worth it. It's just such a practical and effective way to get the triangle. I'm sure Helio would approve.