JerryScript
Daydream Believer
What exactly have you done to it?
I removed all livewallpapers, all /system/media/videos, just left a few choices in /system/media/audio, removed bootanimation (the default android one shows instead, fine for now), cut down language and locals to just english and spanish (for now), removed two non-english keyboards, switched to gannon's Trebuchet, removed all TTS languages except english and spanish (for now), removed extra fonts, and till they are working I removed camera and video apps (that will add up to 10mb back in once they are working).
I think a complete but slimmed down package will end up weighing in at ~70mb, without gapps.
(if we can crib a script together that will scrub all xhdpi images, that would save a bunch, might as well do it for all non-mdpi resources if possible)