You will definitely earn more than 612 TQPs. It will definitely be slightly more than 700. But to be conservative just think about it as 700 and you'll get a few points on top. It's impossible to know the exact breakdown of those sorts of tickets until the points post.
The Thruway bus will earn you 100 minimum and the San Joaquin Train another 100 (could you start trip in San Francisco on Amtrak's Throughway bus for the same price, that would earn you another 100 points). The railfare OKJ-TUS (with a sleeping for the Sunset Limited) is $97, OKJ-TUS is roughly $45 meaning your paying rougly $52 for the two segment San Joquin segment so that's 200 points costing about $55 plus 2 points per $ spent for the Sunset Limited portion of your journey. You could also (don't ride more than 3 segments before boarding the Sunset) decide to stop for a couple hours on your trip down the Valley and have lunch in lets say Fresno (booking the San Joaquin as a multi-city ticket, a free stopover in under 24 hours) and earn an extra 100 points that way.
Sometimes the breakdown though just gives you the minimum for a major segment, like this 5 segment trip (earning me 500 AGR Points, points post the day trains leave) I took home from Chicago to NYP to get more stations on the Keystone Line (paid a through fare of $92.70 for):
07/05/2013 Lancaster, PA (LNC) - Philadelphia 30th St, PA (PHL)
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Ticket: #, Coach Class Unreserved , Price: $6.00
Train #: 0654
Reservation #:
Travel Earning
TQPs 100 07/05/2013 Select Plus Point Bonus Other Earning 50 07/05/2013 Elizabethtown, PA (ELT) - Lancaster, PA (LNC)
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Ticket: #, Coach Class Unreserved , Price: $2.00
Train #: 0652
Reservation #:
Travel Earning
TQPs 100 07/05/2013 Select Plus Point Bonus Other Earning 50 07/05/2013 Philadelphia 30th St, PA (PHL) - New York-Penn. Station, NY (NYP)
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Ticket: #, Coach Class , Price: $25.00
Train #: 0136
Reservation #: 08FBBC
Travel Earning
TQPs 100 07/05/2013 Select Plus Point Bonus Other Earning 50 07/05/2013 Pittsburgh, PA (PGH) - Elizabethtown, PA (ELT)
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Ticket: #, Coach Class , Price: $25.00
Train #: 0042
Reservation #:
Travel Earning
TQPs 100 07/04/2013 Select Plus Point Bonus Other Earning 50 07/04/2013 Chicago, IL (CHI) - Pittsburgh, PA (PGH)
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Ticket: #, Coach Class , Price: $33.00
Train #: 0030
Reservation #:
Travel Earning
TQPs 100
Needless to say when this posted I wasn't happy of the even breakdown for my 3 major segments all about $25.00.
Going from Chicago to New York via Washington with a regional north on a $97 ticket back in 2012 became basically a 1 point per dollar breakdown (it's from 2012, This time I wasn't that unhappy because of the extra TQPs for segments over $30):
08/07/2012 Summer Well Spent - Travel
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Other Earning
TQPs 100 08/07/2012 Select Point Bonus Other Earning 25 08/07/2012 Washington D.C., DC (WAS) - New York-Penn. Station, NY (NYP)
Hide Details Ticket: #, Coach Class , Price: $40.00
Train #: 0176
Reservation #
Travel Earning
TQPs 100 08/05/2012 Summer Well Spent - Travel
Show Details Other Earning
TQPs 100 08/05/2012 Select Point Bonus Other Earning 25 08/05/2012 Chicago, IL (CHI) - Washington D.C., DC (WAS)
Hide Details Ticket: #, Coach Class , Price: $46.00
Train #: 0030
Reservation #
Travel Earning
TQPs 100