DCS:
That bubbly rust in the drip rail doesn't look too good especially for being a "California Parade Car." Not to mention that rear window trim doesn't look like it's put on correctly. I don't see too many cars with rust in the drip rail area unless the rest of the car has tons of rust as well, this is just from my experience. I would ask for lots more pictures of the underneath, wheel wells, inside the trunk, etc. If he isn't willing to take those pictures for you and email them to you, move along as he has something to hide.
But I would certainly go look at it if it isn't too far away. I wouldn't buy it without seeing it person. If you go, take a magnet with you and put it all over the car and see where it doesn't stick or stick too well. Look underneath at the inner rocker panels. Pull up the corners of the carpet and check the floors out. Look in the trunk near the tail pan for rust and on the latch area of the deck lid inside as well for rust.
Most of all, be patient. These cars pop up ALL the time. The ONLY draw back is that you most likely will have to travel to see one.