Sources
Sources that were hard to find or not in the format expected. For that reason, I'm hosting them myself.
Ebuilds
Modified ebuilds for the sources above. Also, modified ebuilds with valid SRC_URIs not hosted by me.
Note:If you put any of these ebuilds into your own overlay, you will need to make a symlink to /usr/local/portage/layman/proaudio/eclass. If your overlay is /usr/local/portage, then do ln -s /usr/local/portage/layman/proaudio/eclass /usr/local/portage/eclass. If you don't, some ebuilds will not know where to find eclasses uses in the proaudio overlay.