8000 standard and 6000 destructables is not enouph? If you need more then that, you may want to optimize your terrain a little more. Detailing every inch of an epic size map requires a lot of doodads, but you might want to rethink your layout if some 14k doodads is not enouph.
One thing you can do is increase the scaling and pathing map of some doodads so you can occupy more space with fewer doodads, depenginf on what you are using the doodads for.
-VGsatomi