'Rivals' 5x5 or 4x4 league idea?

Ottoneu is my favorite fantasy baseball site, and I love having leagues that are just a little different. Obviously if there is no interest that’s fine, but I think it would be fun to have a league where you compete against everyone, but with a focus on one rival. And I think a 5x5 or 4x4 would be better than a h2h type league. Below is a breakdown on how it could work financially. Let me know if you think this would be fun, and if so I’ll see if we can make this happen.

20 dollar Ottoneu league fee
30 dollar leaguesafe buy in ($360)
payout - finish better than your ‘rival’ = $40 ($240)
finish 1st overall - $120