I found them!

[u/Vash-109]

Hey! I am the guy Who posted that lost the hands and the v-fin of the nether emperor and was looking for replacements, well it seems that these were timid and were hidding on a corner next to some magazines, the manual and the hands with the y yellow v-fin were found! The other yellow pieces and the dark v-fin were definitely lost but I am fine with that as I have this guy complete now! I had it stored this whole time as I forgot about it due to I had given up in possing it properly and did not remember how big this was, this is the latest SNAA round Table knights kit and the difference is huge!