The snake wasn't that big. Sure, it weighed a couple hundred kilograms, but Shang could pull that weight with relative ease. It was still annoying, and it definitely slowed him down, but Shang didn't need to constantly take breaks.
Luckily, the beast sacks were made to handle such weight and even more. They were way better than the shitty garbage bags on Earth.
When Shang put the corpse away, he decided to go to the north.
Why?
Because he had already met a General Stage beast.
Since Shang had always gone towards the northeast, he couldn't be close to the Wasteland, which meant that the General Stage beast didn't come from there. Obviously, it came from the Empress Cobra Zone.