I believe SID/NID is the same between Legacy and NV. Some one correct me if I'm wrong.
On the Legacy site in question, you've identified it still has legacy panels but what about the base stations? If your location is still Florida, that would be Ericsson. Check to see if you can see any new base stations. That would give you an indication progress is underway and hopefully it will be a full build.
Pics would help too
This site in Kansas is a full build but RRUs mounted on ground because of the water tower. If your Legacy site could not support the RRUs up by the panels, it would look something like this: