Aren't the 9000-series Univacs not home-grown
products, but rather
the follow-on result of the RCA Spectra acquisition by Univac?
That is the Univac Series 80
The 9000 series is similar but not exactly the same as S360 (a few
instructions and the I/O differ).
There is a complete 9400 that is trying to be brought back to life in
Germany
http://www.technikum29.de/en/computer/univac9400.shtm
It would also be nice to know what ever happened to Bill Yakowenko's 9200
http://www.cs.unc.edu/~yakowenk/classiccmp/univac/news.html