Why not build a few deaf subdivisons in few major metro areas?
This would be easier, because to have a town, it needs to have businesses run by deaf people. Plus, with the original plan being in SD, can one really expect deaf people to just yank their roots from their cities and move to a new town with very few services in the middle of nowhere?
Because the hearings would still run things (politics). It is better if it is just deaf town and that way the deaf people can run things.
It is possible to have an association-based subdivision with its own rules and policies (there's one near my house). It's sort of like a home owner's association but for the entire sub-division. While it won't have a mayor of its own, it can have a deaf leader or board members to run things.
My concern is whether there would be enough deaf entrepreneurs so there would be businesses in the town and also plenty of employment opportunities for the deaf locals. To have a functional town, you would need a medical clinic, some centers of entertainment, food and clothing stores, an emergency center, town maintainence, teen/family recreation, a mini-DMV, bank/credit union, a senior citizen facility, real estate agency, public transportation, etc. To be able to support many of these services, there needs to be enough businesses providing employment so that the locals can afford to pay taxes to support these services.
What about college/university? It would be nice to have Laurent be located close to someplace like Gally, RIT, that Texas university, etc.