We have been remodeling and have some original Eichler light fixtures for anyone who wants them. We call them "Pod Lights", but I don't know the official name for the style. See the image below. Free for pickup in Sunnyvale. Send email to address in image.
We also live in Sunnyvale and bought some of these original lights that you have pictured, but we couldn't find enough to equip the rest of our house. To make a long story short, we ended up selling them on eBay for over 250.00.
You might try that. They now reside in New York City on Riverside Drive.
If you haven't disposed of them, I could use them.
I also live in a Sunnyvale Eichler.
Someone took all the pod lights we had available. Thanks to everyone who expressed interest.