If its possible, I would say limit it only to the vizzed ville map.
That's where a majority of the creations go, so it would make sense to make it there.
The other maps should be left as material gathering areas.

Will a new plugin be added before the competition ends? Or can we get a small extension after the plugin gets added?

Ktanaqui : You misunderstand the way these plugins interact with each other, I think. We don't just have ways for fly to work in specific areas, these things need to be coded into the game in the forum of a plugin. Without said plugin, minecraft will operate as Mojang originally intended it to. Mojang didn't code plots into minecraft, those come from plugins.

With that in mind, we can't just flip a switch and allow people to fly on their plots. In fact, without allowing people into creative mode (making stores useless), we can't let them fly anywhere. Creative is the only way to fly in pluginless Vanilla MC.

So, without destroying the point of currency, we can't just make people fly. Trust me, I've spent many hours searching for a plugin that works with our very long list of requirements (it has to be compatible with spigot 1.8.3, has to work with multiverse build 2.5-b678, has to be able to be limited by world, has to work with grief prevention, and various others). As of now, I haven't found one yet, which is the only reason we haven't allowed people to fly.

Also, we wouldn't charge per hour. We'd charge based on the number of hours said user has on the server. So, if I have 10 hours on the server, I'd be paying a one-time payment of 25,000 Viz to be able to fly. If I had 55 hours on the server, though, I wouldn't even have to pay.

earthwarrior : Unless I find one in the next 5 days, it's highly likely that this competition will end without fly being possible. To be fair, it's totally possible to build just about everything without needing fly, it'll just take a little longer.

Ah, my fault then. Sorry about that. I figured it could be done like mods and I guess I was totally wrong. ^^;