I would need to remake it with nothing but Vanilla blocks.
...which it looks like I'm gonna get to do in the Frozencraft Creative server (my current Minecraft home): mc.creativefrozen.com
Currently, I'm doing something like this (Assassin's Creed-based, but with a touch of Castlevania in the mountain mansion) in there:
Of course, since this is a Creative server, I have to deal with some limitation (no mobs, redstone is banned or severely limited, etc.).