I wish someone would get one of these going in south Florida!
Find out if there is a Legion of Mary in your area. A Marian House of some kind, or the Blue Army of Fatima. Maybe all the parishes in your vicariate/deanery would like to sponsor it.
Our Rosary Bowl in Oregon start with about four people talking about it. As soon as they started working on it, things fell into place. It was amazing.
Ours is also done in five languages
English
Spanish
Vietnamese
Korean
Filipino
We have communities in the Archdiocese with their own churches, but Spanish Masses at many churches.
They also provided spaces for vendors, and we had to move it inside from a minor league ball park because of the rainy and windy weather here.
I would think with the Cuban population there — that this would be really great.