[nubinetwork]

You can always run your own portage overlay. I do it for some random packages that aren't in the main tree.

[aeonik]

Is there a third party like the AUR?

If not we should make one. We should call it Sloppage so the Gentoo devs know what it's about. X-D

[nubinetwork]

There is one called guru, but its probably subject to the same restrictions since its a semi official overlay.