It doesn't have to be a tournament every time, just a regular exchange between Dania and Miami. How about this?
Once a month (still would want it to be special) Dania sends 8 players to Miami for the Saturday Matinee. At the same time, 8 Miami players go to Dania. It needn't be the stars, although that would be best.
Guest players are worked into the host fronton's schedule in appropriate games.
At the end of the performance, the top pair (Campeonato points) from each fronton play a 10-point partido.
Fronton regulars would be able to see players from the other fronton and the short partido is a nice wrinkle.
Cost and logistics issues would be negligible.
What do you think?