To have 2 women that would be fight each other, you and Tonya's husband are very lucky. So for them to not feel pressured into actions they are not comfortable with and to hopefully stay friends, best to let them figure out what type of fight, rules, end criteria (how the winner will be determined), attire and any stipulations. It is the husbands job to make sure they stick to those rules, that they are as safe as possible and that each of your wife's are as ready as possible for the match. I would love to hear a write up of this match, with the type of fight, rules, end criteria, attire and any stipulations decided on. Good luck to all and have fun.