Here's another one that went for 231,000yen back in 2019: https://aucview.aucfan.com/yahoo/k425472046
There are definitely a lot of different Kikaida bootlegs out there but these two yellow-eye examples seem suspect to me. I call BS on both.
Bootleg Kikaida vs Bandai (T.T.) Kikaida, In addition to the difference in the color of the eyes, this particular Kikaida bootleg is more corpulent than the licensed one.