Well, that's a good start, but usually when a fortwars server stays up long enough for me to finish my base and start recruiting, I recruit like 10 people. Bases of this size need alot of management and more than 5000 bricks by a long shot. My Ocean Stronghold included a drydock to let people in by boat to negotiate, a negotiations room, a harbor security room, a courtyard, equipment room, jet runway, prison , prison yard, 2 helipads (One left empty as upper deck with turrets for aerial defense) and offices for high-ranking officers. This all fit on four 64x baseplates arranged in a 2x2 orientation.
An initial brick limit would be too restrictive, killing for bricks would cause alot of freekilling. It's just not a stable system to run by.