New PVP mode Excursion

So this is a general idea for a new pvp mode. I call it excursion. It's a free company versus free company raid that can be tiered to 8-16-24 man. The idea is we buy a plot of land (I know, SE is having enough issues as it is with land but whatever) and we BUILD a dungeon type place. Now this can take place through an instance type event, timed for a specific amount of time, or for a specific goal.

Now, being able to build your dungeon on your plot of land would both give people a reason to earn gil, put gil into the economy, build up a craft, and maintain said craft. You could get drops for monster to create monsters (alchemy), but traps, put mechanics into fights, and the grand finale would be a FC vs FC battle royale.

What reason would there be for such a raid? Bragging rights, access to FC coffers (for a certain amount), SE can put w/e else incentives they want such as tomes, items, w/e. Mainly though, how awesome would that be to go in with your FC and simply see who's better?!

Similliar to Wildstar Warplots or whatever it was called? Those looked really fun, I'd love something like that.

I've never actually played another MMO outside of FFXI, so I can't really say my idea is like anything already been done. My idea stemmed from watching the new anime "Overlord" and thinking of his guild building, and that idea in FFXI about the build your own dungeon and let your friends fight in it for w/e reason.

Also, if anyone has another idea to add onto this one, I'm hoping if it garnishes enough attention, the Developers would take notice and implement something in the general direction. So feel free to voice your ideas and opinions!