I don't want to have to disect everything- makes it feel less like a conversation and more like an attack. However, since it's what you wanted:
In fact, Varana has spent a fair amount of time over the years among the scholarly Ce-Matoran, learning what he can from them, often interviewing the eldest of the Ce-Matoran regarding times past, and such momentous events as the Great Exodus and the heroic feats of the mighty Toa. Varana has also traversed the eerily quiet halls of the temple of De-Congro, poring over any texts contained within the sacred building, as well as searching for any hidden treasures and lost texts the temple may house when he's certain no one is looking. As of now, he has yet to find anything of particular interest even within the most remote corners of the temple.
This right here- if I want to reveal something later, and I know I will, I don't want to run into contradictions of "Varana already knew that, and wasn't surprised" or things like "Why didn't Varana find that already?". It's a little too much getting around that opens a bit too many questions that I haven't had opportunities to answer yet.
A large, heavy, and wickedly sharp sword that he found hidden under an old shrine in Fe Congro. He is convinced that it once belonged to a Toa, but has thus far been unable to figure out what it does other than slow him down and cut through virtually anything like warm butter (the floor of his workshop is littered with grooves carved by him dragging the sword around). He keeps this sword in his workshop most of the time since it's too big to lug around with him everywhere even if it would make a formidable weapon if he could wield it (which he can't).
This should not exist in Kongero Nui honestly. No one was there to lose it, there was no reason to make it, as there hasn't been a Toa in Kongero Nui.
Honestly, six discs is still a lot, but it's a bit more reasonable. Still, since he's in refurbishing and not full on mask crafting, it raises the question of where, and more importantly
how, he got them.