I understand.
As I have said earlier, the terms for this contest have already been fixed. I will surely try to negotiate as per your suggestion in upcoming tournaments (if any). IMO, I suggest you choose any slot you like and give it some spins in demo mode (300-400 spins) to have an idea of how profitable this contest can be. I am suggesting this because you said you never play slots. I respect your opinion.
You can lose (10-20%) of your buy-in/prize, or you can win huge/extra. There are slot-loving people, too, I guess