If you can't find a few reliable admins, then you should just host automated servers. Automatic restarts and bans, why else would you even have admins? The amount of vehicles doesn't really matter. They're all just copies of the same template, which is broken at it's very core. Dev spawning menus aside, H1Z1 doesn't yet have crafting or end game (which it will likely never have), from what the livestream showed -- the cars will flip like flashes, and the game looks like shit overall. Compare: Battlefield 2 (from 2005) H1Z1 (release pending, late Alpha stage) DayZ mod (a mod of a game from 2009) The last of us (a game from last year -- 2013) Yes, the textures will probably be improved, but the current tree models are below placeholders, the terrain is badly made, the landscape is void of anything of interest. The whole thing looks uninspired, like it was roughly painted by a guy who was just hired to clean the floors, yet it's planned to go into beta within a month -- the bug-fixing stage. To sum up: don't get caught by hype. This has the potential to end up as an other WarZ.
The great thing about the game is that the dev, that guy Johny always asks the community for feedback. Saw him a lot of times on reddit, talking with people. Hope the game will have only cosmetic microtransactions, something like PoE. I cannot be something like that game WarZ, where you pay $ for ammo and things like that.