I had 2 ideas for extra customization,
1. Roll order, personally I like it as is currently but a option to roll for the order, and/or choose the roll order.
2. Final 5 turns modifiers, options for 10 or none and perhaps a option to select what modifiers appear and the strength of them. ( Like last place receives 50, 75, 100, coins/ as well as the option to remove altogether from the roulette)
Sorry if my ideas are hard to follow or if not possible. regardless love the game