Option 3 would be more or less standard here and I like the glass as well.
But I think you should ask your target group (Greek beer drinkers) what they think and like.
Note that engraved glasses tend to disappear....
Frankkly I would use my numbers to update the "assumptions" in the calculator, like boil off, water absorption of grains, efficiency etc
Those are different for everyone and every set up
No chill works though ...
Remember Ben (@GFHomebrew or TrialBen) it was all he ever did. I don't brew at that level, but I have had no problems with no chill