What do I need to start this type of Minecraft server?

I'm going to be hosting my own server from home using my PC. My computer is very good and up-to-date, 16GB RAM, XFX Radeon 7970, AMD FX-6300, 2TB HDD @ 7200 RPM. And my internet is a fairly good speed @ 15 mbps download.

So I know I can handle my own homemade server without paying money. I have my own tiny server that I go on with friends just to build and such using bukkit server. I already have some plugins installed. (Essentials, mcMMO, PermissionsEX, Voxel Sniper, World Edit)

But what I want to know is there a way I can make a server so that people can buy houses and such that were already pre-made once they sell diamonds they mine or whatever it is they sell/trade. I'm a pretty decent builder myself and can make some nice looking houses. So I want there to be cheap houses that someone who just started out can buy and modern mansions that long time VIPs will eventually get to buying. Some can be bought furnished and unfurnished. Anyway that's just an idea that I think many people would enjoy because minecraft players love progession, and i see a lack of that in my servers. People will be able to save up money/rank up overtime to get properties, sounds fun right? ANY ADVICE? Can this be possible? What plugins do I need etc etc?

Make housing in tiers. For this I'll use 3 tiers in my example, but you can choose whatever.
Tier 1 is a slum, so they get a sort of a small shack that isn't very big, but big enough to have the basic crafting tools/stations (like the furnace, crafting table, etc) and all the houses are tightly packed with very little room to move around in.

Tier 2 is a modern middle-class neighborhood. It's basically like most neighborhoods in the United States, with at least 1 to 2 yards, a garage/tool shed, and some of the higher-spec crafting stations (like the brewing stand and the enchantment table).

Tier 3 is the upper-end. Its comprised of mansions and/or estates. Players in this group have multiple crafting stations, more and more plots of land and have the option of buying an estate along with their mansion for more privacy.

Each tier has a "rent". The slums would have the least amount, the middle-class has a decent one, while the upper-end will have the most expensive, as they'll have to pay rent on both the mansion and any estates that they own.

These bases, though, are pre-made, that's why they're "rented" out to players. If a player requests a custom-made one and provides all the materials to make it, then they will own that and the property surrounding it, which makes it so they can't be evicted. What this means is that they pay you a fixed number and this allows them to protect their building, as long as it's within a certain size (basically you can't take over a whole 1000x1000 plot of land, but you have unlimited up/down building).

There's also "mid tier" houses, which include motels and hotels. The motel is between tier 1 and 2, and the hotel is between tier 2 and 3. The more rooms/flashier the hotel is, the more it costs to stay in them. All the motels are built the same and cost less than a shack.

These mid-tier houses are paid daily, which makes it a great source for players who aren't very active in the server. The rented houses also have to kick out players who can't afford to keep paying.