Ok, so here's the problem as I see it. The Mythos kit would NOT be a MP kit. It's an alternate Boba kit. There is a difference since Boba's kit has elements that an MP would not have. The Mythos kit would be a "what-if" after he either was or wasn't an MP (depending on what history if any is ever decided on that front).
The whole thing is a trainwreck mismatch of bits. Prepro 1 helmet (as per the jaig eyes), SE gauntlets (both red) but with an ESB flame thrower, ankle knife, saber trophies, RotJ ammo pouches, an added leather satchel pouch on his left side, no big pouches...the list goes on. That's one that should stand on its own and not be included here for setting BRLs.
We had an example of something similar when we were writing all this up and researching it the first time around. The Fenn Shysa action figure. It's a straight up repaint of Jango and isn't even close to the original visual reference. Because of that, we didn't include the inaccuracies as part of the requirements. That kit needs to be moved to the Boba section for someone who want to replicate it exactly, but not here.