The Ice Quetzalcoatlus had a huge body.
The male weighed more than three tons, and the other two weighed about two tons. Since Soran was alone he could only pack as much as possible and pick the better parts to take back; A normal adventure group consisted of around five or six people, which could carry almost everything back. There was no infinite storage ring in this world. The closest thing Soran had seen was, namely, the 30-foot Glove of Storage. The only profession that had infinite storage was the legendary spellcasters. Then there were also the powerful deities who could open up dimensional spaces.
Without a dimensional space, the rare grade equipment only had limited space.