i think you need to consider your project also in BSC as the fees in eth is still an issue to most users. but if you can wait for what may happen this april for eth network, see if there will be improvement in their gas efficiences.
btw, have you pitched this project to any government nearest to your jurisdiction? even in a small town or city, that can test your network? i think that would be great if you can present to us your guinea pig and see if you are successful with this new voting platform?