No, there were only ever two sets of them as far as I know. At the time 1394 - 1399 were scrapped, the sets were not finalized (which is further evident by the inclusion of Turaga tools, which the final arm design cannot wield). Sets 1388 - 1393 would not have been the same as what we eventually got. That is where these come in.
Prototype arm for context:
(Note, this guy doesn’t fit in with these guys; there’s no red trident or red feet, as well wielding both a disk and a staff.)
While we only have the prototype inventories for 1394 - 1399 (because 1388 - 1393 are overwritten by the finalized versions), we do largely know what parts 1388 - 1393 would have used, though not how they pair. Remember, this all started with this list:
There are certain things here left unused:
- Six of the masks: yellow Ruru, yellow-orange Komau, dark red Akaku, dark orange Mahiki, medium lime Miru, sand purple Kakama.
- Five foot colors left unused: brown, yellow, yellow-orange, medium lime, sand purple (this tells us there needs to be one more duplicate foot color).
- Six torso and arm colors: White, red, orange, brown, dark grey, and tan.
- Four Turaga staffs: tan hammer, yellow torch, medium lime saw, medium blue ice pick
- Two disks: Pakari and Kakama.
We can surmise that the disks and staffs correspond with the tribes (i.e. the ice pick would be wielded by a Ko-Matoran, and the Pakari disk by an Onu-Matoran). I would guess the staffs are all wielded by either left hands, and the disks by right hands, or the other way around (hard to say which way).
We can also surmise that there’s six Matoran with dark grey heads and six with light grey heads. Since five of the six in the second range used light grey, there should probably a sixth one with light grey for 1388-1393.
Thus, I came up with this estimation for what 1388 - 1393 could have looked like, but it is ultimately nothing more than guess work. We don’t know how these parts would pair up, or what the duplicate foot color would be (I used dark grey here). I could be way off, given how silly the sand blue “Ta-Matoran” (?) gets.
1394 - 1399 are the only ones we have prototype inventories for.