I picked up one of the three button remotes from some place in China. All the guts of my remote swapped perfectly over (no panic button though) I also cut apart one of the two keys I have to extract the chip, which then slid perfectly into a slot in the new flip remote. To replace the battery I will need to disassemble the remote, but really, I think it's one screw, so it doesn't bother me.
Going over to try and get it cut today.