The hubcaps looked original to me. The under hood shot shows an aftermarket catch can, a generic upper radiator hose and a few other minor details. The rest looks fantastic. The vinyl top would be the clincher for me. They were really nice looking on those cars. I'd say, being a 318 car and all, and not in "mint" condition, it should be worth $8-$10k here in the midwest.
One question. Is the weather so nice out there in California that they don't even put shop doors on the buildings????