-Yaks with bronze knives. -Fire Giants under waterfall, although your ranged level may be a little low. (Get full void range before you begin training)
I recently bought mine and it just dropped 200k, but I don't care as I'm using it as a weapon and not planning on selling it anytime soon. Just buy it as it has always stayed at around 18M
The whole point in tanking is that you can stay there for a very long time. Bringing range pots take up invetory spaces and will run out before you need to leave, they're a hassle unless your using the prayer method.