Ughhh,
First question, why are you not using the ZIP ROM and resorting to uncompromising all those files, what you should be using is not -script but:
-zlua singe\marbvice\marbvice.zip
But apart from that, the arguments look fine, provided your bezel and screen ratio calculations are correct.
If you're already in the Discord, better to check with the Sinden guys (who wrote the game) there.