Any Plan No. 624 blueprints out there?

We have a Plan 624 Eichler in Lucas Valley/Marinwood, built 1957-58, and are wondering if anyone in the area might have blueprints for that model. We are pursuing the UC archives as well as the county, but those don't look promising, as UC's Claude Oakland collection for Lucas Valley is all post-1963 except for one 1958 model.

The house has garage front left, recessed center section with low peak roof held up by 4 posts, plain box on right. As you go back, on the left of the entry is dining/family room, kitchen, living room. Hall on right of entry has medium BR in front, two tiny BRs, then master bath and BR. We would be pathetically grateful for any help.
Mary Nielsen