All non-toyland non-vehicle sounds are done.
Today we made the second release of OpenSFX: the sound replacement project or what OpenGFX is for graphics OpenSFX is for sounds.
It can be downloaded from http://bundles.openttdcoop.org/opensfx/releases/
It currently replaces 50 of 73 samples (68%), which means only 7 non-toyland vehicle sounds and 16 toyland sounds have to be found. After that there's still lots of tweaking to do.