That should be more than enough to take care of one hyuuga.
Greed is only good till its benefits you not when it might get you killed. The MC isn't some medical expert so he can't research the corpse himself and since he admitted that telling the hokage might not be viable so still going after it is more tedious than its worth.
Grindelwald at his finest.
Well it will be too hopeful to think that Voldemort will let Harry be after this encounter. The MC was already in his sights because of his genius but now Voldemort might look at him as a threat as well.
Harley doesn't like Legion for the sole reason that deep down she knows that Joker would not survive messing with him but he still would because he found it funny.
Your reasoning is based on the fact that the MC can get most of the things he wants by himself but in this case where the author didn't give him any extra powers so the MC is stuck with the village for resources and knowledge on chakra and jutsus.
Getting MC in minor or major trouble just to make the story spicy is not necessary as in a world filled with shinobi's trouble will find you. Again my point of contention was that in a world filled with shinobi's, author put the MC directly in ongoing class with no memory of the body to begin with. In that dangerous world if the MC fail to have good mental faculty or does something out of context then labeling him as a spy would not be out of the realm of possibilities.
Would be funny to see Momo's reaction to Mei having MC's baby while she hadn't even told him about her feelings.
Since it was Crouch Jr. who put the name in the goblet, does that mean he will lose his magic as consequence.
True but it could also reject the MC if it has any counter measures placed against non-Gaunt family members. Winning it through right by conquest should do the trick.
Not everyone can remember jutsus from filler episodes so without resources from village or any golden finger for help most would not survive.