Within the movement, there are different groups with different policy proposals (which, even in the “defund” camp, are not limited to just moving money around), which inherently must vary in detail for specific police departments.
But mostly the point right now is to get the people who legislate at the local level to agree that the broad principal is worthy of detailed discussion. And most advocates anywhere on the defund/dismantle spectrum will tell you that they are calling for a broad rethinking around a particular outline involving a variety of community and government groups, not selling a detailed package of ready-to-implement policies.