There are 69 Camaros going for $500K or more. They're called a ZL-1, and have an all aluminum 427 Rat motor rated at 430HP, and actually making about 515. The L-72 Camaro, also known as a COPO, had a 427 Rat motor rated at 425HP, with iron head and an iron block. This one made around 480HP. I work on one (it's a clone, not a real one) that runs in NHRA Stock Eliminator, in A/SA. I've got about 595HP out of this one. An L-72 powered COPO Camaro, a real one, is worth over $150K. COPO stands for Central Office Production Order, the ZL-1 and the L-72 cars were COPO 9560 and COPO 9561. There were only 69 of the ZL-1 Camaros built, and 2 Corvettes. There were a few hundred of the L-72 Camaros built, along with about half as many Chevelles and Impalas. I used to drive an original L-72 Chevelle that ran B/SA. There is actually a REAL Yenko Super Chevelle L-72 Chevelle running in B/SA these days, belongs to a guy named Kevin Borgstrom. The Camaro I work on belongs to Kevin Cradduck. You can see pictures of these cars in action at
http://www.autoimagery.com , just type the driver's name in the search box.
By the way, a Z-11 is a 1963 Impala SS with a 427 W motor rated at about 430HP and making about 520, and an aluminum front clip. The W motor was a precursor to the later Rat motor, and the 427 Z-11 was closely related to the 409-425HP W motor. A real Z-11 could easily bring $250K. Even a 409 425HP car will bring top dollar.
Now, there are TRIM codes for the 1969 Camaro, they are X-11, X-33, and X-77. Those codes denote a body trim type, and not an engine. They are the codes for the Z-28, Super Sport, and Ralley Sport options.
The car in question CAN be restored, provided you want to spend $100K scraping up all the missing parts, IF you can find them all, including a numbers matching engine, transmission, and rear end (the rear end won't have the VIN number on it, but it will have special codes). And yes, if you did it, it would probably bring in a tidy little profit.
One more thing. There are a couple of ZL-1 Camaros out there that are valued at well over $1M. No one knows what a ZL-1 Corvette would bring, since there were only two, and their whereabouts and history are sketchy at best. At one time Lynn Shelbourne turned down $1.5M for his ZL-1 Camaro.