If anyone fancies building a complete working template that includes dynamic z-positioning, inventory, dialogue system and path finding walk areas, Id buy in a heartbeat. In fact, a plugin to go with this would be best, options for "talk to [chaaracter], pick up [object], which would sequence smaller events like walking to objects destroying them/adding to the inventory managed by plugin and walking to characters and starting the dialogue system, which could also be done via plugin.
I'd pay quite a bit for a plugin/template combo like that.