Funny - I extracted the same model from the game on 2019-01-11 and printed it in 90mm height :)
Then I realized that Octodon had published this thing just a few days ago (searched for "xcom ethereal" instead of "elder" and didnt find anything).
Therefore I didnt publish my own mesh refinement here, since his model has some more details.
But now i'm experimenting with electroplating copper and want to share my own "make" picture :)
Extremely pimped RRP Mendel