1) the camaro, as with any vehicle, is made unique by its body style
and appearance.
2)if one is looking to restore to original showroom condition, yes, the restoration can be difficult as nos(new old stock) or gm parts are becoming more and more difficult to find.
2)to rebuild using reproduction parts, one can build three camaros for the same cost as to build one mopar.
2)all shop/service manuals are available.
3) start with auto shop classes in high school.
look for a part time job with an auto mechanic or body shop. you may start by sweeping the floor/taking out the garbage but if you have the aptitude for auto mechanics, you will be able to work up to bigger and better responsibilities around the shop.