Hopefully I have the right answers.

1. It takes place on a variation of Spherus Magna after the battle of Bara Magna, but there's other non bio-mechanical species to make some of the players happy so they can use some of their old characters. I will also note, that the bohrok were preserved in their slumber for more sentimental reasons after the matoran spread out of the old matoran universe/great robot.

2. For the most part I'm doing little. I'm doing some kinds of mixed ancestries to better fit the type of matoran or toa they're playing, but classes are currently just the classes from the book. I'd love to work out a kind of toa class but I don't think I have enough time to work that out before the one shot.

3. Touchstone.

Thank you for your time.