The “sith” translation scene can totally be redone with new lines, add a filter to it (to kinda match what we saw in the movie if need be) and just wow.

That sounds like the perfect way to skip over the nonsensical Raiders of the Lost Ark scene with the dagger and the Death Star. I kinda want him to recite a rhyming riddle but Idk if the fact that C-3PO improvises a translation that rhymes is a bit too convenient. Nonetheless, a riddle of some sort could be interesting. It would even retain the treasure hunting aspect of the original dagger extension scene without the plot holes.

Really though, is the 3PO voice necessary for that? The movie gives him a different voice when his eyes turn red, and I think that makes more sense.