criminality issues will be far less of a problem in the near future anyway so that point is entirely moot, there is really no need to screw with map size. the reason nobody has laid down a **** claim yet is because they don't work and a lack of knowing where said bases are not map size.
bit again if convenience is an issue make an outpost for each cardinal direction, charge 500 - 1ks to use it, make it have a several hour cooldown. problem solved with very little additional programming required as porting, bind etc mechanics already exist.