Are there any legend items, other than Odlov's Odd Mask, that sold in the torishop rather than being one of a kind?

The only legend item ever made publicly available was the Shoulder of Erth. Though that was initially given out as part of an event, later to be released alongside the BP, this is not exactly what you've asked for.

Safe to assume this was the only one.

Oh yeah I forgot about the shoulder of erth. Thats not the only one though. Like I said in the op, Odlov's is also publicly available. https://forum.toribash.com/tori_shop_item.php?id=2098