Half of the questions in here could easily be found within just a few minutes of reading through their FAQ/Whitepaper...

https://minerone.io/doc/minerone_whitepaper.pdf
https://minerone.io/faq.php

I meant the payment options to buy the tokens 

Will there only be Ethereum as a payment option?

And for how long will people receive sth? As long as they have their MIO?

Like what do u mean with "Cheap"?

And what other hardware would I need for like a 2-4 GPU Mining rig?

Sorry for those noob-questions   

So im pretty new to this "Mining"-Stuff, and i was thinking about maybe buying a few GPUs, but since they are already pretty expensive, and our electricity isn't the cheapest either (0.15 €/kWh), i'm not sure if it's worth it?

I mean, Profit-Calculator's say i would make profit, but the thing is, im somehow scared of literally failing/setting up everything...

Can you guys maybe share your stories how you got started with all this mining-stuff?