I recently obtained an Addonics MBA-386B-25UN mainboard.

Unfortunately some parts are missing. At least the battery hasn't leaked yet. But it will have to go soon.

I'd like to get this board back into a working state, means i need the BIOS, an AMI keyboard controller, and a 25 MHz 386.
The CPU is easy and I'll probably have one soon, but the BIOS doesn't seem to exist on the internet. UH19 says it's an AMI one but I don't know anything else.
I'm in no particular rush to get this project completed but i'll leave this post here in case in future anyone manages to get hold of a BIOS dump. If you do, please share.
In case this BIOS (or a suitable alternative) turns up I'll edit the post and link it right here.

Since the infos on UH19 are incomplete, here are some more pictures:

That's a lot of jumpers there 😮
What's this weird white connector? Haven't seen that one on a mainboard yet.

If anyone has any hints to fix this, or possible alternatives for BIOSes (like a MR-BIOS that saved the day previously) please add your thoughts.
As far as my knowledge about keyboard controllers goes is that it specifically needs to be an AMI one, correct? Since it's supposedly an AMI bios...
Or could a 8042 work as well? Or whatever else is out there?

EDIT: Redirected to new uh19 entry