Doug,
I'm no expert on this one, but I know a lot of cars have been brought into CA from other states and several must have been converted from state XX '65 to CA SPCNS registration. Perhaps post your question over on the registration forum and see if you get any feedback from someone who has done it?
http://www.clubcobra.com/forums/forumdisplay.php?f=120
As you already know and thudmaster said too trying to bring it over as a '65 is a dangerous plan.
It sure is a nice looking car at a very reasonable price. The
oil leak thing is the only head scratcher, might be minor, might be a pain in the @$#.
Daryl