Fishlipsatwork (Paul Haglund) did these about 8 years ago. They come in three parts, four if you want to go all the way to Oxnard, as follows.
San Jose, KUID2: 59012:102134:1, about 75 route miles
Salinas, KUID2: 59012:102135:1, about 110 route miles
Vandenberg, KUID2:59012:102112:1, about 100 route miles
Ventura, KUID2:59012:102122:1, about 100 route miles
All are on the DLS. Search with the KUIDs and make sure you have the TRS2004 box checked. I am working with these and they are very good. My period is well before AMTRAK so I have to take the TIGER lines with a grain of salt, but they should be about spot on for you.
Bernie