Still, it is going to be hard to find someone that looks like him. I hope Franco got his casting file ready...it is going to be a long day. The thing about Sal that seperates from other teen actors from that era(50s-early early 80s) is that a very unique Sicilian look. Dark eyes, cherubic features, pouty lips, etc. Pretty much all the above. It is going to be hard.
But as you further read his book, it is somehow kind of sad, but there is the passion he still wanted to continue working.
By the way, the nude thing you mentioned about Sal and Dean...was that from Jeffer's book or something?