I saw a beautifully restored black '57 356 for sale in Yorba Linda yesterday. Sign said they were asking $18k.
It's at the Mobil Station on the corner of Yorba Linda and Richfield. Not sure if it's still there today, but I thought I'd post it in case anyone was interested.
I had my digital camera with me yesterday, but after I locked my keys in the 914 with the motor running, I forgot to take any pics...