If your car is registered you will need to have insurance on it, even if you are not driving it. If you do not have insurance, the state of Florida can suspend your license.
Another option would be to turn your plates into the department of motor vehicles. The car would no longer be legal to drive but you would not be penalized for not having insurance. This would be a good idea if you're planning on selling the vehicle for parts.
However, if planning on repairing the vehicle, option two might not work for you. Most people buying a vehicle will want to test drive it. In this case, you will need to have insurance and have plates.
Your solution will really just depend on how you want to handle this. But your solution can fit into one of the three options above.